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:     Did you remember to bring back that software I lent to you ? 
 Person2:  Oh , I ’ m sorry . It completely slipped my mind . 
 Person1:      That ’ s ok . If you could just bring it in tomorrow , I would appreciate it . 
 Person2:  Definitely , I ’ m really sorry . 

1