"If i say "find me a good ticket for Chicago tonight". How will it know that i'm talking about the rock band that's playing tonight in Paris, France, since there's absolutely not a chance that a human being asks for a plane ticket for such a big trip just a few hours in advance ?"

Funny, your "absolutely not a chance" interpretation was mine. Maybe there was a death in the family. Maybe you need to visit a friend short notice. Maybe I'm being a bit pedantic, but I was with you until that point. :)