Given the question "How late at least does the man have to check his ticket?" and the answer "11:35 a.m.", write a conversation that might have happened.


W: We can start at 9:00 and arrive in Guangzhou around 12:00. Is it OK?

M: Can we start early? My train will start at 12:05 a. m, and it will stop checking tickets at least 30 minutes ahead.