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:     Would you like to have dinner with me tonight ?  
 Person2:  Oh , that sounds great !  
 Person1:      I ’ ll pick you up at ... say , 7,30 ?  
 Person2:  Yes , that would be perfect .  
 Person1:      See you tonight then .  
 Person2:  Yes . Thank you for inviting me . 

0