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:     Are you free tomorrow , Sam ?  
 Person2:  Yeah , what's up ?  
 Person1:      I'm going to go hiking . Do you want to join me ? 

1