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 you doing this weekend ?  
 Person2:  Nothing much . I ’ m going to the cinema on Friday night but that ’ s all I have planned .  
 Person1:      So you ’ re free on Saturday night ?  
 Person2:  That ’ s right .  
 Person1:      Would you like to have dinner with me ?  
 Person2:  Oh , that would be lovely . Shall we say seven o ’ clock ?  
 Person1:      Perfect . I ’ ll pick you up then . 

1