answer: #Person1# wants to send a parcel to Taiwan by airmail. #Person2# charges for $ 10.
documents: #Person1#: Good morning, I want to send this parcel to Taiwan.
  #Person2#: Airmail or surface mail?
  #Person1#: How long would surface mail take, compared with airmail?
  #Person2#: Oh, anything up to 3 or 4 months for surface mail. It depends on the sailing of the ships. Airmail would only take 1 to 2 weeks.
  #Person1#: How much would this parcel cost me by airmail?
  #Person2#: Just let me weigh it for you. That's 2 lb. and 6 oz. That's be $  10.
  #Person1#: Thanks. That'll be OK.