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:       Hi ! Dick . Where are you going ? You're in such a hurry .  
 Person2:Playground . We're having sports for today's outside class activities . All my classmates have already got there .  
 Person1:        What are you going to play ?  
 Person2:Some of us will play basketball and some volleyball .  
 Person1:        Enjoy yourself . 

informal