A: I was wondering if the book I reserved has arrived?
B: Oh yes, it's here. Here you are.
A: Oh, thanks.
(1) So when is it due?
(2) so until when can I check it out?
(3) So when is the due date?
(in order of preference)
B: You can return it next Monday.
If it's late,
There'll be a one dollar penalty for every hour.