answer: Steven asks Bill about Bill's plan for Christmas and invites him to a party. Bill would like to join.
documents: #Person1#: Merry Christmas, Bill!
  #Person2#: Merry Christmas. Steven!
  #Person1#: What do you want to do to celebrate Christmas?
  #Person2#: I'll have supper with my girlfriend and go shopping. What about you?
  #Person1#: I'll go to church first and then go to a Christmas party. Would you like to come?
  #Person2#: I'd love to. But I am going to meet my girlfriend right now. See you later.
  #Person1#: See you.