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:     Hello . Overseas operator . May I help you ?  
 Person2:  Yes . I'd like to make a collect call to Japan .  
 Person1:      Your name , please ?  
 Person2:  It's Helen Kent .  
 Person1:      Who would you like to talk to ?  
 Person2:  I'd like to talk to Mr . Edna Kent .  
 Person1:      Is that Mr . Edna Kent ?  
 Person2:  That's right .  
 Person1:      What number are you calling from , please ?  
 Person2:  From code 513 , 432-6748 .  
 Person1:      And the number in Japan , please ?  
 Person2:  Country code is 81 , area code 138 , and the number is 846-8972 .  
 Person1:      Hold the line , please . I'll put your call through . 

1