Touring Test, 1950
ELIZA, published in 1966,
graphic of two GUI's
Natural Language Processing NLP (not to be confused with Neuro Linguistic Programming)
Speech Synthesis
Speech Recognition
facial expression recognition and synthesis
living within an Instant Messaging, of Live Chat platform
pattern matching of keywords
Search
Customer Service
Toys
Expert Systems (Diagnositics, for example)
Personal Assistant
There are APIs.
There are javascript front-end source-code libraries.
BOTUI https://botui.org/