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:     Can't you delay your return a little bit ?  
 Person2:  No , I can't . I've really got important business .  
 Person1:      Keep in touch then , OK ?  
 Person2:  OK . 

0