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:     Excuse me . Do you know where I can find a pay phone ?  
 Person2:  There is one around the corner .  
 Person1:      Can I make an international call from that pay phone ?  
 Person2:  Yes , but you have to get a phone card first .  
 Person1:      Where can I get a phone card ?  
 Person2:  You can get one in the grocery store over there .  
 Person1:      Oh , I see it . Thank you . 

1