instruction:
Given a travel related situation, and given a specific question about the situation, summarize the question into a title
question:
When paying by card flight attendants usually ask to see your ID, to verify that the card in fact belongs to you. However it seems weird to me that pretty much no other merchants ever ask to see your ID, even when conducting purchases for thousands of euros (e.g. at IKEA).

So why do airlines insist on verifying your ID when paying by card? I understand that there's (usually) no Internet to verify the card balance on the plane (as suggested by TonyK), but how would one's ID help them out in case the card is empty?

answer:
Why do flight attendants ask to see your ID when paying by card on the airplane?


question:
I am applying to the French embassy for a one-month Schengen visa. For proof of sufficient means, I have my bank statement (with slightly over $7000) and monthly pay slips (of about $1500). The document requirements say that I need to submit 3 years of IT returns, but I've only been working for 2 years and  haven't filed IT returns even for those years. Can this be a cause for possible rejection of my application?

answer:
Are the tax return document mandatory for a Schengen visa?


question:
I am from Australia and planning to visit Canada and U.S this year. I got my ESTA approval but not sure about coming to U.S. twice in a month. I will be visiting NY from Toronto and then back to Toronto and then Vancouver. From there I am planning a trip to LV & LA. Will there be an issue as my second visit will be in a couple of weeks time again to U.S.  Any help please as I am not sure about this, thanks.

answer:

Multiple entry in a month allowed under ESTA?