dialogue: #Person1#: Why don't you have some of my cake, Sue? I made it just for this party.
  #Person2#: Sorry, Bill, I'm not in the cake at the moment. I thought you knew about my diet.
  #Person1#: On your birthday? Surely you can eat whatever you want on your birthday. You can start your diet tomorrow. And anyway, you look great.
  #Person2#: Well, thanks, Bill. I am not on a diet to lose weight, actually. My doctor told me to stop eating certain foods. I'm trying to avoid being allergic to something.
  #Person1#: I didn't know food could help with that. I also notice you didn't eat any of the sandwiches Jill brought.
  #Person2#: Yeah, and you and Tom and Shellin all brought different cakes. I'm dying to try them.
  #Person1#: Why don't I go get you a salad? I'm sure you'll feel better if you eat something.
  #Person2#: All right, it's the only thing here I can eat. What I really want is some hot soup.
  #Person1#: Why don't I go and get some soup from the restaurant across the street for you?
  #Person2#: That's awfully nice of you. But I'm enjoying my party. Maybe we could go afterwards.
  #Person1#: OK, you go back in the house and chat with the guests. And I'll call the restaurant and tell them we'll be there in a few hours.
summary: Bill made a cake for Sue's birthday but Sue can't eat it because she's on a diet to avoid being allergic. Bill and Sue will go to the restaurant to have some soup after the party.
topic: diet