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:     Have you ever been to Japan ? I'm going in the fall .  
 Person2:  Yeah , I've been there twice .  
 Person1:      Really ? Tell me about it . What's it like ?  
 Person2:  Oh , it's fantastic .  
 Person1:      Where did you go ?  
 Person2:  On my first trip I went to Tokyo , and on my second trip I visited Kyoto .  
 Person1:      What did you think of Tokyo ?  
 Person2:  Very big and exciting , but very crowded , too .  
 Person1:      Yeah . I've seen pictures of the crowds !  
 Person2:  And the restaurant are excellent ... but they're kind of expensive .  
 Person1:      And how about Kyoto ?  
 Person2:  Kyoto is lovely . It's full of beautiful old temples and gardens.It ' s a very historic city .  
 Person1:      How was the weather ?  
 Person2:  I was in Tokyo in August , and it was really hot and humid . I went to Kyoto in October.It was hot and sunny , but there was no humidity .  
 Person1:      Sounds perfect . I can't wait ! 

1