A widget that opens with "what is your email" is a form with a friendly greeting, and it converts like one. A bot that answers the question first earns the right to ask.
That sequence — usefulness first, capture second — is the single largest determinant of conversion in a chat widget.
Where the visitor is identifiable or the page is specific, the assistant already has context. Asking what they are interested in when they are on a pricing page for one product wastes the advantage.
Qualification questions should be the ones you genuinely cannot infer, and there should be very few of them.
No. Answer first — it is the largest single factor in conversion.
The conversation, the page and the source, not just an address.
It should become an owned lead with a clock, not a message waiting in an inbox.
Half an hour with your own data usually saves reading three of these. The guides will still be here afterwards.