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:       Hey ! Fred , you are five minutes earlier than me today . Usually , you don't .  
 Person2:Hurry ! It is time for me to steal something .  
 Person1:        What's your meaning ?  
 Person2:I am stealing vegetables at the Happy Farm .  
 Person1:        You are a thief ?  
 Person2:No , no . I mean stealing vegetables on Internet is very popular now . Many white collars join in this game and have a lot of fun by stealing others ' vegetables .  
 Person1:        You mean it is a still virtual game . Your friends steal your vegetables time and time again , and you take theirs as well , right ?  
 Person2:You got what I meant . Perhaps , what I steal are not vegetables , but loneliness .  
 Person1:        Don't be addicted to the game . It's not good for your job . 

formal