answer: #Person2# shows #Person1# how to use a vending machine as #Person1# wants to buy candy.
documents: #Person1#: Can you help me figure out how to use this vending machine?
  #Person2#: Yes, I would be happy to help. What do you want to buy?
  #Person1#: I want to buy that candy.
  #Person2#: OK. So this machine will make change if you need it. Do you have your dollars ready?
  #Person1#: Yeah, so far, so good.
  #Person2#: Next, you feed your dollars into the machine in the slot. Make sure they are smooth.
  #Person1#: Yeah, I already knew that.
  #Person2#: I'm sure you know that if the dollar gets stuck, you might have to re-feed it.
  #Person1#: OK, let's move on!
  #Person2#: Now you just make your selection and pray. If nothing comes out, try again or call the number on the side of the machine.
  #Person1#: I hope it works!
  #Person2#: Well, good luck!