THEN I get a call from the admin saying 1. The original flight was delayed and 2. They've whooshed him through customs and now he CAN make the original flight...ONLY, I've canceled his First Class seat and there's no way to get it back.
The client is now super-pissed at me because he has to wait around another two hours. (Never mind how pissed he would have been if he'd wanted the later flight and couldn't get on that one.)