dialogue: Emmye: Excuse me, could you tell me where the nearest post office is?
  Claude: Yes, walk down this road and then turn left when you get to the third crossing. You will see it not far ahead of you.
  Emmye: Thank you. Could you give me more information?
  Claude: Of course. When you turn left, you will see a five-star hotel with a tea shop on the left. The post office is just next to it. It's a three-storey building.
  Emmye: How long will it take to get there if I walk?
  Claude: About 30 minutes?
  Emmye: Oh, that's too long.
  Claude: Uh, well, you can take bus 232 or get a taxi there.
  Emmye: I think getting a taxi might be better. Thanks a lot.
  Claude: You are welcome.
summary: Claude tells Emmye how to get to the nearest post office. Since it will 30 minutes if Emmye walks, Emmye decides to take a taxi.