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:       Who is that guy ?  
 Person2:It's Clive of course . Where did you come from ? Every girl knows Clive !  
 Person1:        Really ? He is my type .  
 Person2:He is everybody's type .  
 Person1:        What position does he play ?  
 Person2:Shooting guard . The same as Michael Jordan !  
 Person1:        Oh , I love Michael Jordan . He fills people's lives with great excitement .  
 Person2:Used to . But now he is too old to play in a fierce game like this . But Kobe is the upcoming superstar now .  
 Person1:        Kobe is a good player but I heard he is a womanizer .  
 Person2:That is not true . They are just jealous of him !  
 Person1:        Jordan is a legend , anyway . An idol that no one can replace . I think Clive can make a good professional basketball player . He is not just about muscles he also plays smart .  
 Person2:You know what , he is also an outstanding football player . He is surely to be a star of tomorrow .  
 Person1:        By the way , do you know if he has a girl friend ?  
 Person2:You are so not here ! His girlfriend is one of the cheer leaders .  
 Person1:        Oh , My chance is slim then . 

informal