A practical guide to the Dialogflow chatbot: what it is and how it works in 2025

Let’s be honest, customers today want answers instantly. The pressure is on for businesses to provide 24/7 support, which is why so many are turning to AI chatbots to lighten the load, cut down on support costs, and keep users happy. One of the biggest names you’ll hear in this space is Google’s Dialogflow.

But what actually is a Dialogflow chatbot? And more importantly, what does it really take to build and run one without pulling your hair out? This guide will walk you through what the platform is, how its pieces fit together, and where it tends to fall short. We’ll also look at a more modern approach that gets you the power of automation without the intense setup.

What is a Dialogflow chatbot?

A Dialogflow chatbot is a conversational AI built on Google’s platform for understanding natural language. Put simply, it’s the technology that lets you build a virtual agent that can figure out what people are asking (via text or voice) and give a reasonably human-like response. It’s plugged into the Google Cloud ecosystem and can be added to websites, apps, and various messaging platforms.

Dialogflow comes in two flavors:

• Dialogflow ES (Essentials): This is the standard version, best suited for smaller, simpler bots where conversations don’t have too many twists and turns.

• Dialogflow CX (Customer Experience): This is the heavy-duty version for large, complex agents. It uses a visual, step-by-step flow, which gives you a lot more control over long and complicated conversations.

Essentially, Dialogflow acts as the "brain" for your chatbot. Developers use it to map out how the bot should understand a question and connect it to the right answer or action. It’s a powerful system, but getting it right involves juggling a few technical parts that can get complicated fast.

How a Dialogflow chatbot works: the core components

To get a feel for how a Dialogflow chatbot operates, you need to know about its main building blocks. These components give you a ton of control, but they’re also the source of the platform’s complexity, which is why you often need a developer on hand.

Agents, intents, and entities

Think of these three as the core logic that drives every conversation.

• Agent: This is your chatbot. When you start a project in Dialogflow, you’re creating an agent that you’ll need to train to handle conversations.

• Intent: An intent is just the user’s goal. If a customer types, "What are your business hours?", the intent is something like check_store_hours. The tricky part is you have to feed it lots of "training phrases" (different ways a user might ask the same thing) for every single intent.

• Entity: Entities are the specific details the bot needs to pull out of a user’s message. For example, in the sentence "I want to order a large pepperoni pizza," the entities would be size: large and topping: pepperoni.

Coversation maps: Flows, pages, and state handlers

In the more advanced Dialogflow CX, the conversation path is managed more like a flowchart using these parts.

• Flows: You use flows to break down big topics into smaller pieces. A retail bot, for instance, might have separate flows for "Placing an Order," "Tracking a Shipment," and "Starting a Return."

• Pages: Each flow is made up of pages, and each page is a single step or state in the conversation. The chat moves from one page to the next as the user provides more information.

• State Handlers: These are the rules that guide the conversation between pages. They listen for user intents or other triggers to decide where the conversation should go next.

Here’s a simplified look at how that works:

Specifically built for developers

While this system gives developers fine-tuned control, it’s a huge hurdle for most support teams. Every conversational path, every possible question, and every keyword has to be manually defined, built out, and then constantly maintained.

This is a world away from modern AI tools designed for business users. For example, a solution like eesel AI skips all this manual work. Instead of you building flows and defining intents from scratch, it learns directly from your existing knowledge, like help center articles and past support tickets. You can get a genuinely helpful AI assistant up and running in minutes, not months.

Key features and limitations of a Dialogflow chatbot

Dialogflow has a lot of features, but it’s important to understand its limits before committing, especially if you’re a busy support team. Many of its strengths for developers turn into headaches for businesses that just want a simple, effective solution.

The visual builder and pre-built agents

Dialogflow offers a visual flowchart builder to help you map out conversations, which can make the logic easier to see. It also provides pre-built agent templates for common scenarios like booking a hotel.

• The upside: These features can give you a starting point and potentially cut down on some of the initial coding.

• The reality: The pre-built agents are just templates. You’ll almost always need a developer to customize them heavily to match your company’s actual processes and brand voice. And the visual builder is only helpful if you already have a solid grasp of Dialogflow’s technical concepts.

Training your chatbot is a lot of manual labor

Training a Dialogflow bot means sitting down and manually creating intents, then coming up with dozens, if not hundreds, of example "training phrases" for every single goal a user might have.

• The upside: You get very specific control over how the bot responds to certain phrases.

• The reality: This is an incredibly slow and tedious process that’s mostly guesswork. You’re trying to predict every possible way a customer might ask a question, and you’ll inevitably miss some.

• A different approach: Modern tools like eesel AI get rid of this grunt work. Our platform plugs right into your helpdesk and automatically trains on thousands of your past customer conversations. It learns your brand voice, understands the common problems people have, and finds the right answers from real, historical data, so it’s accurate from day one.

Chatbot integrations and getting it live

Dialogflow can be connected to many platforms, including websites and chat apps like Slack or Microsoft Teams.

• The upside: It’s a flexible platform that can be used across different channels.

• The reality: Getting Dialogflow to work with your other tools usually requires custom coding and wrestling with APIs. It doesn’t just slide into your existing support workflow. Most teams that use it end up having to manage support conversations in two different places or go through a massive, complicated migration project.

• A different approach: eesel AI offers one-click integrations with helpdesks like Zendesk, Intercom, and Freshdesk. It works inside the tools you already use, helping your agents instead of forcing them to change how they work. That means no disruption and no need to rip out your current setup.

The real cost of a Dialogflow chatbot

When you’re looking at a platform like Dialogflow, the monthly subscription fee is just the tip of the iceberg. The total cost also includes a huge amount of time and money spent on development, maintenance, and testing that often gets forgotten.

Development and maintenance overhead

Building a Dialogflow chatbot isn’t a one-and-done task for your support team; it’s an ongoing engineering project. Every time your product changes or a new customer issue pops up, a developer has to go in and manually update the bot’s intents, entities, and flows.

• The eesel AI difference: eesel AI is designed to be completely self-serve. A support manager can set up, configure, and maintain their AI assistant from a simple dashboard, no code required. Our AI also keeps itself up-to-date by regularly syncing with your help center and other knowledge sources.

Testing your chatbot with confidence (or not)

Dialogflow has a simulator where you can test conversations one by one. It’s fine for checking a specific path, but it doesn’t give you a real sense of how the bot will handle the thousands of varied, unpredictable questions your actual customers will ask.

• The eesel AI difference: Before you even turn it on, eesel AI lets you run a simulation on thousands of your past tickets. This risk-free test shows you exactly how the AI would have answered, gives you a solid forecast of your automation rate, and even points out gaps in your knowledge base. You can launch knowing exactly what to expect.

Dialogflow’s pricing headaches

Dialogflow’s pricing is usually based on how many requests (user messages) your bot handles. This means your bill can swing wildly and get expensive fast, especially during busy seasons.

• The eesel AI difference: We offer clear, predictable pricing. Our plans are based on a set number of interactions, so you won’t get a nasty surprise on your invoice after a successful month.

Feature	The Dialogflow Way	The eesel AI Way
Setup	Requires developers to manually build intents & flows.	Self-serve for support teams; go live in minutes.
Training	Someone has to manually type in training phrases.	Learns automatically from your past tickets & help docs.
Testing	Manually test one conversation at a time.	Run a bulk simulation on real tickets with a clear ROI forecast.
Maintenance	Developers must constantly update the bot’s logic.	The AI stays synced with your knowledge sources on its own.
Pricing	Pay-per-request model that can be unpredictable.	Flat, predictable monthly fee. No surprises.

This video provides a step-by-step walkthrough of building your first agent in Dialogflow CX, illustrating many of the core components discussed in this guide.

Is a Dialogflow chatbot the right call for you?

At the end of the day, a Dialogflow chatbot is a powerful tool if you have a team of developers ready to build a completely custom conversational experience from the ground up. For that use case, it offers a ton of flexibility.

However, for most customer support and IT teams, the complexity, manual setup, and constant need for technical maintenance make it a difficult and expensive choice.

The best support automation tools are the ones built for the people who actually use them every day. eesel AI offers a much simpler and more effective path by plugging directly into the tools you already have, learning from your data automatically, and giving you the power to launch and manage a smart AI agent without needing to call a developer.

Ready to try an AI support agent you can launch this afternoon, not next quarter? Start your free trial with eesel AI and see how much you can automate.

See how eesel AI can help your team do their work, start a free trial or book a demo.