dont give out personal information to a punter.
its not his business really where you went to school or things like that, it has nothing to do with your job. ask him when does he want the booking for and if he doesnt give straight answer (which he wont probably), just disconnect the line. he is a timewaster, im 100% sure.
if he is a genuine punter he will make a booking and come to you, and then if you know each other you can cancel and send him home and both of you be silent about it, nothing happened.