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:     Could I change these pounds for dollars , please ?  
 Person2:  Do you want small bills or large ?  
 Person1:      It doesn't matter .  
 Person2:  Do you want anything else ?  
 Person1:      Yes , I'd like to know the exchange rate for yen . 

0