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:     Which pair of jeans do you like best ?  
 Person2:  I really like the straight legs .  
 Person1:      But they aren't very fashionable . What about these ?  
 Person2:  I don't like the way they sag down . I feel like I have plumber butt in them .  
 Person1:      That's the style ! You just wear boxers .  
 Person2:  What if someone got it in their head to give them a tug ? What then ?  
 Person1:      You're so old fashioned ! Nobody is going to pull down your pants !  
 Person2:  If you ask me , it's a walking invitation ! 

1