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:     Do you have girlfriend ?  
 Person2:  Yes , why ?  
 Person1:      Well , I came to know a girl three weeks ago . We have so much in common .  
 Person2:  So ?  
 Person1:      So I think I may fall in love with her .  
 Person2:  That sounds great . But how do you know that's a crush or a real love ?  
 Person1:      Then what's the difference between having a crush and falling in real love ?  
 Person2:  That's a big question . Well , if you're in love , maybe you will take every opportunity to talk to her or telephone her for no reason at all .  
 Person1:      That's what I do .  
 Person2:  And you think about her all the time ?  
 Person1:      Yes .  
 Person2:  And maybe you suddenly have new interests . I mean you suddenly begin to do things you used to avoid . For instance , you used to sleep in every morning , but because she jogs every morning then you begin to like jogging .  
 Person1:      That's it . She likes dogs so much now , and I begin to love dogs .  
 Person2:  Oh , congratulations . Sounds like you've found your soul mate .  
 Person1:      Thanks , but I know falling in love is one thing while staying in love is another .  
 Person2:  Yes , that's right . If you find this person becomes more and more important to you and you can totally trust her , then you can stay in love .  
 Person1:      Yeah , falling in love is so good . 

1