The Dialogflow node incorporates Google's Natural Language Processing (NLP) and machine learning expertise directly into your bot to provide your users with rich, natural language comprehension in free-text nodes.
Dialogflow can be useful for responding intelligently to a user's free-text, natural-language requests such as "how much does your product cost?"
Incorporating successful NLP will require some effort to train and curate the data so it gives correct responses to the questions your visitors are asking. By continuously monitoring your Dialogflow input phrases, you can make your bot smarter and more dynamic over time.
Once you have connected your Dialogflow account, you can add the plugin right from the bot menu.