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:     Does he know that he has already at his wits ' end ?  
 Person2:  I think he has realized that . But he is still whistling in the dark by putting up an act .  
 Person1:      He might be driven up a wall . You should not handle your relation with him with kid gloves .  
 Person2:  But when I noticed that he was left in the cold , I could not help wanting to help him to get out of the situation . 

1