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 make it to school today ?  
 Person2:I always do . Did you go to school today ?  
 Person1:        No , I didn't .  
 Person2:You should have , but have you seen any movies lately ?  
 Person1:        That was an odd change of subject .  
 Person2:Maybe it was , but answer the question .  
 Person1:        No , not recently .  
 Person2:I want to go to see a movie this weekend .  
 Person1:        What's stopping you then ?  
 Person2:I don't want to go alone .  
 Person1:        So , will you be at school tomorrow ?  
 Person2:No , I want to go to the movies instead . 

formal