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:     What are in this folder ? 
 Person2:  They are reports of our company . 
 Person1:      Are they filed alphabetically ? 
 Person2:  No , they are filed according to dates . 
 Person1:      Can you find last month ’ s report for me , please ? 
 Person2:  No problem , here you are . 

1