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:     Where is the bus ? 
 Person2:  I think it's running late . 
 Person1:      It should've been here 30 minutes ago . 
 Person2:  It should be coming soon . 
 Person1:      It better , because I'm already late for work . 
 Person2:  I can't stand riding the bus . 
 Person1:      Me too , it's so unreliable . 
 Person2:  That is true . 
 Person1:      It's also horrible having to be at a bus stop in any kind of weather . 
 Person2:  Exactly.That ' s the worst part . 
 Person1:      I think it's time we started driving . 
 Person2:  Yes , I agree . 

1