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:     Has the train come yet ?  
 Person2:  No , I ‘ Ve been waiting for ages .  
 Person1:      It ’ s so unreliable . I ’ Ve been late for my meetings all this week .  
 Person2:  Yes , me too . I think I ’ Ve lost some important clients recently because of this train !  
 Person1:      Yes , my customers have started to complain too !  
 Person2:  Oh look ! Here it comes now ! 

1