answer: #Person2# introduces the two Psychology open classes to #Person1# and #Person1# signs up for one of them.
documents: #Person1#: Hello, I need to register for a class.
  #Person2#: What class are you trying to take?
  #Person1#: I want to take a Psychology class.
  #Person2#: Well, there are only two classes open.
  #Person1#: Can you tell me what days the classes are on?
  #Person2#: One class is on Tuesday and Thursday from 2 p. m. to 4.
  #Person1#: And the other class?
  #Person2#: That class is from ten to twelve on Monday and Wednesday.
  #Person1#: Are you sure these are the only open classes?
  #Person2#: Yes, I am sure.
  #Person1#: Okay, sign me up for the class on Monday and Wednesday.
  #Person2#: Very well then.