Definition: You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. You are required to assign a label 'formal' if there is an absence of emotion and a presence of questions anywhere within the conversation. If such pattern is not found assign the label 'informal'.
Input:  Person1:       How do you get paid ? If you don't mind my asking . 
 Person2:Not cash . But if our launch goes well , my stock options will pay off , big time . 
 Person1:        And in the meantime , how do you pay the rent ? 
 Person2:I don't have to worry about rent . I live right here . 
 Person1:        What ? In your cubicle ? 
 Person2:Right here . Me and my PC . Home sweet home . 

formal