answer: #Person2# wants to buy a plant for mom's birthday. #Person1# recommends Sweet William, whose flower comes every spring. #Person1# then talks about the way to grow it and charges #Person2# $8.
documents: #Person1#: Welcome to York Garden Center. How can I help you?
  #Person2#: I'm looking for a plant for my mom's birthday. What's this one called?
  #Person1#: Sweet William. Its name comes from the writer William Shakespeare.
  #Person2#: That's interesting. What color will the flower be on this one?
  #Person1#: This type is pink but there are also types of red and purple.
  #Person2#: Good. When will the flower come?
  #Person1#: Every spring. Then you need to cut it before the summer so it can return next year.
  #Person2#: OK. When should I put it outside?
  #Person1#: Well, it's August now. Wait until September to put it in the garden.
  #Person2#: How tall will it grow?
  #Person1#: It's only 10 centimeters tall now, but in 2 or 3 years that will be 30 centimeters tall. Leave space for it.
  #Person2#: I'd like to buy it. How much is it?
  #Person1#: The normal price is $10 but it's only $8 this weekend because we have a special discount.
  #Person2#: Great.