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:     Room reservations . Can I help you ?  
 Person2:  Hello , is there a room available ?  
 Person1:      What kind of room do you have in mind ?  
 Person2:  A twin room , please .  
 Person1:      Hold on , please . ... I'm afraid we're fully booked.The only room available at the moment is a suite .  
 Person2:  Oh , I see . Thank you anyway . 

1