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:       Mary , I have something to tell you .  
 Person2:Go ahead .  
 Person1:        I ’ m afraid you ’ ll become angry . But I think I must tell you .  
 Person2:Come on . Don ’ t hesitate .  
 Person1:        John made out with other girls at the party yesterday . 

informal