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:     Can I help you ?  
 Person2:  Yes . When is the next train to New York City ?  
 Person1:      Let me see ... the train to New York City ... here it is ... daily except Sunday at 10 thirty , 12 twenty and 15 ten .  
 Person2:  Aren't there any trains before 10 thirty ?  
 Person1:      Sorry , not before 10 thirty .  
 Person2:  Then one to New York at 10 thirty .  
 Person1:      One way or round trip ?  
 Person2:  One way .  
 Person1:      A soft seat or hard one ?  
 Person2:  How much is a soft ?  
 Person1:      $ 15 . And for a hard one , only $ 6 .  
 Person2:  Then one hard seat , please .  
 Person1:      OK . Here is your change . The train leaves on platform 8 . 

1