answer: #Person2# tells #Person1# the letter sent by EMS takes 3 to 5 days from Beijing to New York.
documents: #Person1#: I'd like this letter to go by EMS. What's the rate?
  #Person2#: $7.65 for up to 2 pounds.
  #Person1#: Thank you. I hear the EMS is the next day service. Is that true?
  #Person2#: Well, it's true within America, but now you are in Beijing. The letter has to go through customs and get registered there. Anyway, it's faster and safer than ordinary mail.
  #Person1#: Then how long will it take to get to New York?
  #Person2#: It depends. Usually 3 to 5 days.
  #Person1#: I see. How much does that come to?
  #Person2#: That'll be $15.30.