What is the man going to do tonight?

W: Would you like to go to the cinema tonight?
M: I’d rather stay at home and watch TV. I have to get up early to attend a meeting to- morrow.

W: Don’t forget to write to me, John.
M: I won’t. But let me make sure I have the right address. Is it 42 Weststreet Birmingham?
W: That’s right. By the way, my office number has changed since I began to work at Birmingham.
M: Has it? And tell me what it is, then.