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:     Good evening . How many people of your party ?  
 Person2:  Three . Two adults and one kid .  
 Person1:      For buffet ?  
 Person2:  Yes . How much do you charge for it ?  
 Person1:      Thirty for each adult , twenty each kid .  
 Person2:  I see . Where can I get the food ?  
 Person1:      Please go to the tables over there for cold dishes and vegetables . The hot dishes are on the other side .  
 Person2:  Do I need to pay extra charges for drinks like cola and juice ?  
 Person1:      Not for soft drinks . But we charge ten yuan for each alcohol order . 

1