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:     Going to the gym tonight , Mary ? 
 Person2:  Yes , Sally . I want to do some sit-ups and perhaps get in a game of singsong . 
 Person1:      That sounds like fun . Would you mind some company ? 
 Person2:  I'd love it . Working out is more fun with a friend . 
 Person1:      I'll get my things and meet you there . 
 Person2:  Good . If you happen to see Jim and Bob on the way see if they would like a game of singsong . 

1