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 even bother to go to school today ?  
 Person2:Yeah , I went . Did you go ?  
 Person1:        No , I didn't feel like it .  
 Person2:That's nice , have you been to the movies lately ?  
 Person1:        No , but that was a random change of subject .  
 Person2:It may have been random , but have you ?  
 Person1:        I haven't lately .  
 Person2:I would love to catch a movie this weekend .  
 Person1:        So then , why don't you just go ?  
 Person2:I don't want to see a movie by myself .  
 Person1:        Okay , so are you going to school tomorrow ?  
 Person2:I think I might just go to the movies . 

formal