Daniel: Dad, do you know which bus we should take?
Benjamin: Of course, er, let me check the bus schedule first.
Daniel: Be quick, please!
Benjamin: Why can't I find the bus your mother told me yesterday?
Daniel: Mom has told you about the direction 3 times yesterday.
Dad: But I was watching American Idol at that time.
Daniel: We need to ask someone.
(There comes Bus 29)
Benjamin: Excuse me? Does this bus go to Xidan Book Building?
Conductor: No, it doesn't. You need to take Bus 52.
Benjamin: Do I have to change to some other bus on the way?
Conductor: No.
Benjamin: I see, thanks. Oops! The Bus 52 is coming. Daniel, come on. Let's go.