answer: Vicki wants to buy David's necklace and bargains with him. Finally, the deal is concluded.
documents: #Person1#: Hello, Vicki.
  #Person2#: Hi, David. What a beautiful necklace! Dude, I'Ve never seen anything like it.
  #Person1#: Well, you can have it for eleven hundred, as a friend.
  #Person2#: I think seven hundred is enough.
  #Person1#: What? Seven hundred?
  #Person2#: Well, eight hundred, then?
  #Person1#: No, one thousand at least.
  #Person2#: Eight hundred and fifty. Come on. I have 4 kids, 3 dogs, and 2 husbands to feed!
  #Person1#: You're a thief, Vicki. But I guess, eight hundred and fifty is all right.
  #Person2#: Here you are, sucker!
  #Person1#: Victory for me, I bought it for 30 bucks just yesterday!