Can’t they link to sources? Like Perplexity.ai or Arc Search does.

I don’t even need it to tell me anything. Links are all that is relevant. Google Analytics on the Web does something similar. You can ask questions in the search box and it takes you to a relevant page.

“Can I get refund on my flight 2 hours in advance?”

“Here is a link to refund policies w.r.t time before flight”