answer: Erica Stone phones Mr.Johnson to repair the broken window now. Mr. Johnson remembers having repaired a window broken by her children which was actually broken by Erica.
documents: #Person1#: I'd like to speak to Mr. Johnson, please.
  #Person2#: This is Mr. Johnson.
  #Person1#: Oh, hello. This is Erica Stone. My living room window was broken this afternoon. Can you repair it?
  #Person2#: Sure. I can come over tomorrow afternoon. Is that OK?
  #Person1#: Could you come over now?
  #Person2#: OK, I'll come over and take a look in a little while.
  #Person1#: You charge about $100, don't you?
  #Person2#: Usually, if it's a small window. Didn't I repair a window for you a few weeks ago? Oh, and your children have broken the window again? Were they playing ball in the house?
  #Person1#: Well, I told them not to do that any more. This time I broke it. I was practicing my volleyball.
  #Person2#: Oh, you did, did you?
  #Person1#: Yes, you're right.