We are going to Kalkan flying with Turkish airlines, Manchester-Istanbul-Dalaman. My daughter booked the tickets with her visa debit via a travel agent not the actual airline , the card has her married name on it. She has time left on her passport and hasnt changed to her married name on it yet, which is apparently legal. So if the checkin ask to see the card it has a different name on it, her passport and ticket in maiden name. Would her marriage certificate be ok to prove she is who she is? Sorry to be long and involved.