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:     Hello . I have left my key in my room . But I can't get in now .  
 Person2:  May I have your name and room number ?  
 Person1:      I am Molopo and my room is 5022 .  
 Person2:  OK.sir . Please go upstairs . Someone will open the door for you .  
 Person1:      Thanks a lot . 

1