Represent the dialog for retrieving similar scenarios Speaker2: What's for dinner, mum?
Speaker1: I'm not sure, ask your dad ;-)
Speaker2: How about a pizza?
Speaker1: You had pizza for lunch.
Speaker2: But I love pizza.
Speaker1: Everybody loves pizza.
Speaker2: So why can't I have pizza for dinner?
Speaker1: Because you need variety.
Speaker2: Which is... ?
Speaker1: Different things—not the same thing all the time.
Speaker2: You mean, like a pepperoni pizza instead of a cheese pizza?
Speaker1: No, Speaker3:-) Come downstairs, we’ll figure it out together;-)
Represent the dialog scenario for retrieval Speaker2 wants pizza for dinner even though she had it for lunch. Speaker1 wants some variety for her. 
Represent the dialog scenario for retrieval Speaker2 sent a file accidentally,