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 Elvin ?  
 Person2:  Elvin Dixon . Who are you ?  
 Person1:      I'm Mary . I want to say I really admire the software you're designed .  
 Person2:  Easy stuff . But thanks . And the admiration is mutual .  
 Person1:      It is ?  
 Person2:  You're selling invoking subscriptions like nobody's business . And we don't even have a working demo yet .  
 Person1:      I can't take the credit for that . I'm just Zina's assistant . She's the pro . 

1