It is odd that they considered that a common usecase.

Perhaps they really wanted to show a good looking widget and I suppose flight info was the best candidate.

I have had some calls with family or friends about an upcoming flight where this could've saved a few seconds.

Would I want to save a few seconds in exchange for their processing of my whole conversation even if offline? That's another story.

To me it's a solution looking for a problem. Just revisit Microsoft's marketing material for their Copilot products. Bizarre use cases one after another.