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:       Why are you leaving your present job ?  
 Person2:I ’ m not so satisfied with it .  
 Person1:        Why do you plan to change your job ?  
 Person2:I'm now a secretary in my present work unit . My work is not interesting . I have to type , make copies , book tickets and so on . Everyday I follow the routine . Furthermore , I have studied English for four years at university , but I can ’ t use it there . They are the reasons I plan to change my job .  
 Person1:        Why are you interested in working with this company ?  
 Person2:One of my relatives told me that your company needs someone who can speak English . That's just the job that I have been looking for 

formal