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:       Did you have a part-time job when you were still in school ?  
 Person2:No . I was way too busy studying all the time . How about you ?  
 Person1:        Yeah . I worked about 20 hours a week in a pizza restaurant .  
 Person2:What was that like ?  
 Person1:        It was always very busy there .  
 Person2:What did you do ?  
 Person1:        I stood behind the register and took pizza orders .  
 Person2:Did you get any perks on the job ?  
 Person1:        Yeah . I got to eat as much pizza as I could for free . 

formal