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:     Hi , nice to hear from you , when does your plane leave ?  
 Person2:  It leaves in 20 minutes .  
 Person1:      Good .  
 Person2:  Can you pick me up from the airport ? 

1