Well done Travis Alber! Thorough article.
I like that you addressed the need for balance between the “conversation” part and the “button” part of the UI.
Khodl has a great piece on the shortcomings of NLP:
His article was instrumental in my draft of a potential application of conversational UX in a domain different of healthcare but where it would also be tremendously beneficial:
Let’s see where all of this goes!