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:       Mom , I want to get a motorcycle . Is that all right with you ?  
 Person2:You mean a murder cycle ? Did you know more cyclists die in accidents than motorists ?  
 Person1:        Mom ! I'll wear a helmet and I'll drive sane . I promise .  
 Person2:I'll tell you what . You can get a motorcycle on one condition .  
 Person1:        What's that ?  
 Person2:You spend two weeks with dad in his ambulance as an EMT trainee and volunteer at the emergency room for one month .  
 Person1:        And after that ?  
 Person2:After that , we'll let you decide if you still want a murder , I mean motorcycle . 

informal