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:     Would you like anything else , sir ?  
 Person2:  May I have some water , please ?  
 Person1:      Certainly . Would you like your coffee with your dinner or later ?  
 Person2:  With my dinner , please . And can you take my order for dessert later ?  
 Person1:      Of course . 

1