Provide the theme summaries for the following conversation: 

#Person1#: Tom, please go to the door. I hear the Bell.
#Person2#: It's the mailman mother. Here's a letter from uncle George.
#Person1#: Give it to me. How wonderful! He is coming to visit us.
#Person2#: And when's he coming?
#Person1#: He's coming by car on the twenty-fourth. He staying from the twenty-fourth to the twenty-sixth.
#Person2#: And let me look at the calendar. And good, and the twenty-fourth is a Saturday, is he coming alone?
#Person1#: No, he's coming with aunt Cynthia and the girls.
#Person2#: Uh, mother, I don't remember the girls. How old are they?
#Person1#: Your cousin, Fe is 15. Rosemary is older than Fe, she 17.
#Person2#: Are they going to stay here with us?
#Person1#: Of course, the girls can stay in your room and you can share the room with us.
#Person2#: Mother may we have a party?
#Person1#: If you like, but now we have to think about meals and many other things.
#Person2#: Prepare the list mother, I can go to the small stores. Everyone knows me there.

Summary: 
Tom's mother tells him that uncle George is coming to visit them with aunt Cynthia and two girls on Saturday the twenty-fourth. So now they have to think about meals and many other things.