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'm so hungry ! Can you buy me a burrito ?  
 Person2:I don't have any money to buy you a burrito .  
 Person1:        Please ? I haven't eaten anything all day .  
 Person2:Look , I only have money to buy myself a burrito .  
 Person1:        I'm so hungry , I could eat a whole cow !  
 Person2:If you're so hungry , why don't you ask someone else for money ?  
 Person1:        I get paid on Friday , I'll pay you back then .  
 Person2:Well , I guess on Friday , then you can eat .  
 Person1:        That's pretty messed up .  
 Person2:Why don't you just go home and eat ?  
 Person1:        I don't want to go all the way home just to eat .  
 Person2:Well , I guess you're out of luck . 

formal