Rasa – open source A.I. chatbot

Rasa is:

… the leading conversational AI platform, for personalized conversations at scale.

https://rasa.com/

“Towards Data Science” has a series of articles on it:

https://towardsdatascience.com/create-chatbot-using-rasa-part-1-67f68e89ddad

Rocket chat and Rasa:

https://rasa.com/docs/rasa/connectors/rocketchat

Embedding Rasa in your web site:

https://stackoverflow.com/questions/60734052/how-to-integrate-rasa-chatbot-into-website