answer: #Person2# buys a pair of earrings outside the window with #Person2#'s assistance.
documents: #Person1#: Good morning. what can I do for you?
  #Person2#: I'm looking for some earrings for my wife as a wedding anniversary gift.
  #Person1#: You've come to the right store. We've got a beautiful and wide selection of earrings for you to choose from.
  #Person2#: I saw a pair of earrings outside your window. Can you show them to me?
  #Person1#: Do you mean the exquisite pearl earrings?
  #Person2#: Exactly. How much do you want for them?
  #Person1#: They're only three thousand yuan.
  #Person2#: What is this setting made of?
  #Person1#: Well, it's specially made of a platinum alloy, sir, and the lustre will never fade out.
  #Person2#: I'II take them. Please wrap them up tor me and give me the receipt.
  #Person1#: You've made an excellent choice, sir.