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 hate eating vegetables !  
 Person2:You don ’ t have to eat them . I don ’ t mind .  
 Person1:        Thanks , Mom.Can I have dessert now ? I love chocolate cake .  
 Person2:No dessert for you unless you eat all of your vegetables .  
 Person1:        But I don ’ t like them.It ’ s not fair .  
 Person2:You can have some fruits for dessert.If you eat an apple and a banana , I might let you have a small piece of chocolate cake .  
 Person1:        Ok , actually I don ’ t mind eating peas and carrots.But I hate broccoli and cauliflower .  
 Person2:I'll remember that for next time.You ’ ll get extra peas and carrots , but no broccoli or cauliflower , ok ?  
 Person1:        Thanks , Mom ! 

informal