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How to build FAQ Chatbot on Dialogflow?

 

After Google I/O I’m inspired and excited to try new APIs and learn new stuff from Google. This time I decided to try Dialogflow and build a Flutter Chatbot app that will answer some frequently asked questions about Dialogflow. This time I want to be focused more on Dialogflow rather than Flutter.

Firstly, go to Dialogflow ES console, create a new Agent, specify the agent’s name, choose English as a language and click “Create”.



As you created a new agent go to setting and enable beta features and APIs and Save.



Now let’s model our Dialogflow agent

When you create a new Dialogflow agent, two default intents will be created automatically. The Default Welcome Intent is the first flow you get to when you start a conversation with the agent. The Default Fallback Intent is the flow you’ll get once the agent can’t understand you or can not match intent with what you just said.

  1. Click Intents > Default Welcome Intent
  2. Scroll down to Responses.
  3. Clear all Text Responses.
  4. In the default tab, create the following 2 responses, for example:
  • Hi, I am the Dialogflow FAQ bot, I can answer questions on Dialogflow. What would you like to know?
  • Howdy, I am the Dialogflow FAQ bot, do you have questions about Dialogflow? How can I help?

This should look like this:



Now, edit the default fallback intent

  1. Click Intents > Default Fallback Intent
  2. Scroll down to Responses.
  3. Clear all Text Responses.
  4. In the default tab, create the following response:
  • Unfortunately, I don’t know the answer to this question. Have you checked our website? http://www.dialogflow.com?
  1. Click Save

Lastly, connect to the online knowledge base! I’m using Google Cloud docs for this.

Knowledge connectors complement defined intents. They parse knowledge documents to find automated responses. (for example, FAQs or articles from CSV files, online websites, or even PDF files!) To configure them, you define one or more knowledge bases, which are collections of knowledge documents.

  1. Select Knowledge (beta) in the menu.
  2. Click the right blue button: Create Knowledge Base
  3. Type as a Knowledge Base name; Dialogflow FAQ and hit save.
  4. Click Create the first one link


And click Create

When you click “View detail” next to your Document name you can see that Google APIs selected correctly questions and answers from the web. And there you have it! Now if you want to use it and test it you have to enable Dialogflow API in your Google Cloud console. Just go to Google Cloud console, search for Dialogflow API, and enable it for your project which was created automatically when you created a new agent in Dialogflow.



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