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:     How is your appetite today ?  
 Person2:  I'm rather hungry now .  
 Person1:      What would you like to have ?  
 Person2:  Please give me a piece of pie first .  
 Person1:      Which would you rather have , beef or chicken ?  
 Person2:  Beef , please .  
 Person1:      How about drinks ? Coffee or tea ?  
 Person2:  Coffee , please .  
 Person1:      Do you want to take milk and sugar ?  
 Person2:  Only black coffee . 

1