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:     Chris , where are you going ?  
 Person2:  I'm going to the store .  
 Person1:      Really ? I need to go to the store too .  
 Person2:  Would you like to come with me ?  
 Person1:      Yeah , let's go together .  
 Person2:  Would you like to go now or later ?  
 Person1:      Now .  
 Person2:  What ?  
 Person1:      Now would be better .  
 Person2:  OK , let's go .  
 Person1:      Should we walk ?  
 Person2:  No , it's too far . Let's drive . 

1