What is conversation design?
We should begin at the beginning:
Here’s what Google has to say about it:
Conversation design is a design language based on human conversation (similar to how material design is a design language based on pen and paper). The more an interface leverages human conversation, the less users have to be taught how to use it. It’s a synthesis of several design disciplines, including voice user interface design, interaction design, visual design, motion design, audio design, and UX writing.