answer: #Person2# didn't come to work yesterday because #Person2#'s son had a fever.
documents: #Person1#: You didn't come to work yesterday. What happened?
  #Person2#: I had to look after my son at home.
  #Person1#: What's wrong with him?
  #Person2#: He has a fever.
  #Person1#: Is he getting better now?
  #Person2#: I think so. Thank you.