Definition: You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. If the conversation begins with a question, label it '1' otherwise '0'.
Input:  Person1:     Where are you going for lunch ?  
 Person2:  I have no idea . I have no appetite .  
 Person1:      I know of a restaurant . I'm sure you'll like it .  
 Person2:  Let's go there then . Is it a Chinese restaurant ?  
 Person1:      Yes.it serves excellent Sichuan food . Spicy food may improve your appetite .  
 Person2:  I hope so . 

1