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:       Well , thank you.Mr.Parry , for all your information.Just one more question .  
 Person2:Yes , sir ?  
 Person1:        Do you play any sports or games ?  
 Person2:I used to play football regularly when I was at university.And I used to do athletics in the summer .  
 Person1:        And what athletics did you play ? Can you remember ?  
 Person2:I was a runner_a long-distance runner .  
 Person1:        And now ?  
 Person2:No . I'm afraid I haven't had time since I got married .  
 Person1:        Well , thank you again for coming to see us.But just remember that we like people who join the company to play in the company sports teams .  
 Person2:Certainly , sir . 

formal