answer: #Person2# checks #Person1#'s bike and finds the brake loose. #Person2# tells #Person1# where to find a repairman.
documents: #Person1#: Can you help me?
  #Person2#: What seems to be the trouble?
  #Person1#: There is something wrong with my bike.
  #Person2#: Oh. The brake seems to have become loose. That's dangerous. Without a good brake, you can't control your speed. Accidents are more likely to happen. You'd better have it repaired as soon as possible.
  #Person1#: Where can I find a repairman?
  #Person2#: There is one at the corner of the street near the post office. It is about 150 metres away.
  #Person1#: Will it take long to get it fixed?
  #Person2#: Just 15 minutes.