Originally Posted by MSPeconomist

I don't understand the question. No reputable travel agent would refuse to accept an AmEx credit card (or any other major brand), nor would they expect customers not to pay with a credit card for the consumer protection it carries. The DL Reserve card is not different from any other AmEx product in its treatment of fees and there shouldn't be an objection to a close relative paying for palne tickets. However, be sure that the tickets don't have a notation that the credit card must be shown at check in; apparently, this is a common practice in some markets as a fraud prevention measure.