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:     Hello , Tom . How do you find the dinner of yesterday ? 
 Person2:  Very good . That may be the most delicious food I have ever eaten . 
 Person1:      It's nice of you to say so . 
 Person2:  I really appreciate you for having invited me . 
 Person1:      Don't mention it . You know , we ’ re old friends . 
 Person2:  Anyway , I owe you one . Are you free tonight ? 
 Person1:      Yes . Why ? 
 Person2:  I want to invite you to enjoy the food I cook . 
 Person1:      That ’ s great . I'd love to . 

1