I actually thought those buttons would result in additional results, rather than narrowing down his/her later choices. Either that or they'd do nothing, since that's what the other button of that type that they encountered seemed to do...

Admittedly I don't fly that much, maybe once a year. But I still don't quite get some of these 'frequent flyer point' schemes. Do you get them as a reward for flying? Or, as in this case, are they always 'disney money' that buy flights?