How soon do I have to leave my room?
Normally it's by 12 at noon on the day you leave.
Well, you see, my plane doesn't go till half past five tomorrow afternoon.
I see. Which room is it, madam?
Room 577, my name is Browning.
Ah, yes, Mrs. Browning. You may keep your room then till 2 pm, if you wish.
Oh, that's nice. By the way, how long will it take to get to the airport from here?
It's usually a 90-minute ride. But you'd better set off at 2:30 in case there is a traffic jam on the way.