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:     So do you think you can get to the office alone ?  
 Person2:  Sure , I ’ ll catch the train . If I can ’ t catch the train , I ’ ll get a taxi .  
 Person1:      Do you think the taxi driver will understand you ?  
 Person2:  If he doesn ’ t understand me , I ’ ll show him the office address on my business card .  
 Person1:      Ok but how will we know if you are going to be late ?  
 Person2:  I ’ ll call you if I ’ m delayed . 

1