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 afternoon , sir . Would you like a tea ?  
 Person2:  I'd rather have a cup of coffee .  
 Person1:      Of course sir , would you like milk and sugar with that ?  
 Person2:  Yes , please . Milk and two sugar . 

0