answer: #Person2# tells #Person1# #Person1# took the wrong bus and tells #Person1# how to get to the Terra Cotta Warriors in Xi'an by bus.
documents: #Person1#: Hi, I want to see the Terra Cotta Warriors in Xi'an. Could you please remind me when we are arriving at that stop?
  #Person2#: Oh. You took the wrong bus. You need to take Bus 151 which goes the opposite direction.
  #Person1#: Oh, no! What should I do now?
  #Person2#: Don't worry. You can get off at the next stop and walk across the street and take the Bus 151 to the opposite direction.
  #Person1#: Ok. How many stops do I have to go?
  #Person2#: About 15 stops.
  #Person1#: That is a long way to go. It is so kind of you to help me. Thank you very much.
  #Person2#: My pleasure.