Changing names?

I need some advice.....
About to book some flights over to JFK for late december for me and the (by then) new Mrs Jimmy Mc. She has a FC card currently in her maiden name (we dont get married till late july) and we are off to MCO for the honeymoon but that flight is also booked in her maiden name.
By the time the JFK trip comes up her passport will be in her married name, so obviously I am booking the flight as such. But if I put her FC number in the booking am I going to encounter any problems such as 'card number does match booking name'?
Should I just leave putting the card number in until after we are back from honeymoon and calling FC to affect the changes and then adding the number in then?
About to book some flights over to JFK for late december for me and the (by then) new Mrs Jimmy Mc. She has a FC card currently in her maiden name (we dont get married till late july) and we are off to MCO for the honeymoon but that flight is also booked in her maiden name.
By the time the JFK trip comes up her passport will be in her married name, so obviously I am booking the flight as such. But if I put her FC number in the booking am I going to encounter any problems such as 'card number does match booking name'?
Should I just leave putting the card number in until after we are back from honeymoon and calling FC to affect the changes and then adding the number in then?