In addition, booking through airline sites creates other problems for corporate travel programs. "All of our reservations are queued to a risk management system, so with the touch of a button, we know where our travelers are at all times," De Costa says. Although United started with travel agents, Boyd believes credit card fees may eventually be borne by travelers no matter where they purchase their ticket – including airline websites. "Airlines could say, the fare is $100, and if you are going to pay with a credit card, the fee is $2.86. Airlines might go to that at some point for everybody," Boyd says. In that case perhaps travel agents may no longer feel they've been targeted unfairly, but it will be one more ancillary fee added to the price of a ticket if you use a credit card to book that trip.