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:       I believe you ordered the Grand Slam breakfast .  
 Person2:Oh , good ! You know , I am looking at my plate and I ordered scrambled eggs , not fried .  
 Person1:        Oh , I just noticed that I accidentally brought you your friend's breakfast .  
 Person2:I can just trade with him , thank you .  
 Person1:        And pancakes for you , sir .  
 Person2:I am sorry , but I think I ordered waffles .  
 Person1:        I am sorry that I misheard you .  
 Person2:Just please take my pancakes to trade for waffles . While I am waiting , I will eat my bacon and eggs .  
 Person1:        I will get straight back to you with your waffles .  
 Person2:I would appreciate that . 

informal