answer: #Person1# wants to exchange a dress. #Person2# tells #Person1# there will be a big sale next weekend, so #Person1# will come back next weekend.
documents: #Person1#: I've brought this dress back to exchange it.
  #Person2#: That's not a problem. Leave it with me, and find something that you like.
  #Person1#: I was hoping you'd have something on sale today.
  #Person2#: We have nothing on sale today. But we're having a big sale next weekend.
  #Person1#: Is the sale going to include dresses?
  #Person2#: Everything you can see will be on sale.
  #Person1#: I like the sound of that. I'll just come back next weekend.
  #Person2#: The savings will be worth the short wait. See you next weekend.