The Nielsen/Norman Group has published a well-researched exploration of the kinds of conversation modes users employ with AI chatbots:

Through analyzing 425 interactions with generative-AI bots like ChatGPT, Bing Chat, and Bard, we’ve discovered that conversations could involve many vague, underspecified prompts or few, razor-sharp ones. Why does this matter? First, different conversation types serve distinct information needs and demand varied UI designs. Second, there is no one optimal conversation length — both short and long conversations can be helpful, as they might support different user goals.

It’s a very worthwhile read.