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 , Tom . You forgot to put on your sports shoes ! It's Games Day today !  
 Person2:Well , I have them in my bag . I'Il put them on right away !  
 Person1:        Let me give you a hand . You are carrying so many books .  
 Person2:Thanks !  
 Person1:        Have you forgotten the cheers ?  
 Person2:No , I haven't . I've tried hard to remember and I'm quite sure I've memorized the rhythm correctly .  
 Person1:        That's good ! 

informal