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:       Isabelle , you know I'm not interested in fame .  
 Person2:Well , you don't seem to be interested in getting a real job , either .  
 Person1:        You know I'm interested in teaching . I'm looking for jazz students ...  
 Person2:Yeah , and every high school student in town is banging on your door , right ?  
 Person1:        I know they're out there . I'll find them .  
 Person2:You're such a dreamer ! You think that you can spread the word of jazz in an underpass ? 

formal