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:     Good evening , sir .  
 Person2:  May I have the key for Room 358 , please ?  
 Person1:      Certainly . Oh , you have a message here .  
 Person2:  Thank you . Is there any mail for me ?  
 Person1:      No , there isn't at the moment . 

0