Reservation information was used to control for people flying together - not that I would consider it a foolproof method. In all the times I've flown, probably

Reservation information was used to control for people flying together - not that I would consider it a foolproof method. In all the times I've flown, probably 80% were with someone but the reservations were not made together. I doubt I'm the only one for whom this is representative since it was business travel.