dialogue: #Person1#: Can I help you?
  #Person2#: I need some stamps for this letter.
  #Person1#: What kind of stamps do you want?
  #Person2#: How much do I need for this letter?
  #Person1#: I must weigh it first. Err... It's five grams over weigh, Do you want to send it as an ordinary or registered letter?
  #Person2#: I want it registered. How much is it then?
  #Person1#: Registration plus overnight... err... seven dollars in all.
  #Person2#: Here's a 10 - dollar bill.
  #Person1#: Now, your receipt, and the change.
  #Person2#: Thanks. Good-bye.
summary: #Person2# wants to send a letter. #Person1# says it's five grams overweight plus overnight so seven dollars in all.
topic: letter