answer: Mrs. Smith requests #Person1# to recommend some detective stories for her mother as a gift.
documents: #Person1#: Good morning, Mrs. Smith.
  #Person2#: Good morning. Can you help me please? I'm looking for some books for my mother as a gift.
  #Person1#: Well, what kind of books does she like?
  #Person2#: She's very font of detective stories.
  #Person1#: I see, has she read any detective stories?
  #Person2#: Oh, yes.
  #Person1#: Do you know if she's read this one? It's a best seller of this year.
  #Person2#: I'm not sure, but she probably won't remember if she has. She has a bad memory.