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:       Have you ever gotten a parking ticket ?  
 Person2:I've gotten a few .  
 Person1:        How many is a few ?  
 Person2:I've gotten about six .  
 Person1:        Have you paid all your tickets off ?  
 Person2:Yes , I've paid all of them off .  
 Person1:        How much is the fine ?  
 Person2:It's like $ 130 each ticket .  
 Person1:        That's not cheap at all .  
 Person2:I got a parking ticket the other day .  
 Person1:        Pay it off , and they'll clear your record .  
 Person2:I'm going to do that as soon as possible . 

formal