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:     Reservation , may I help you ?  
 Person2:  Yes , I would like to make a reservation for May 3rd .  
 Person1:      For how many people ?  
 Person2:  Only one .  
 Person1:      May I have your name ?  
 Person2:  John . 

1