NM said:
They can ask for anything they want. Its often part of their process to "profile" people, and they are more interested in your reaction rather than the item.
This is why you should always carry the e-ticket receipt or a printed itinerary that oncludes the e-ticket number when using an e-ticket. Just having or knowing the booking record locator is not sufficient as that is only relevant on the booking/reservation system the agent originally used. An e-ticket receipt is just as good as a paper ticket when it comes to proof of holding a ticket.
I once changed my flight to stay a few extra weeks in the UK. How's this for some serious profiling at the immigration counter:
Immigration chick asks for my itinerary, looks at it, different date on it obvoiusly since it's the original receipt with 2 weeks earlier.
Immigration chick: So why'd you change your flight mate?
Kooky: Umm .. ahh .... because I felt like it?
Immigration chick: Good answer!
Immigration chick gives itinerary to Darren or whatever the senior guy behind her is and mumbles something about "can you do a check".
Get passport back and proceed past immigration only to be stopped by the senior guy.
Senior immigration guy: So mate, why'd you change your flight?
Kooky: Umm ... ahhh ... because I was enjoying my time in Europe and felt like staying longer?
Senior immigration guy: That's fine mate, off you go.
So there you have it .. profiling passed .. the honest guy has no answer other than that he wanted to stay longer and passes both levels of screening with flying colours.
Enjoy!!!!!!!!!!!!!!!!!!!!!!!!!