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:       Where do you see yourself three years from now ?  
 Person2:Working for your company ! As the top administrative assistant in your firm !  
 Person1:        Good answer , Miss Zhang-good answer ! Seriously , though , are you interested in staying in a staff-level position , or would you hope to move into management someday ?  
 Person2:Well , I haven't thought much about this . I think it's too early to tell . What is the most important for me now is to do the best possible job for the company and learn and develop my skills as much as possible . If the company is happy with my work , then , I think I would like to consider other positions in the company .  
 Person1:        Fine . What kind of relationship do you think should exist between a boss and his or her employees ?  
 Person2:Well , a working relationship . I think a company is a place to get work done . Certainly friendly , open relationships among all company employees is important . But I think an employee should be serious about his or her work responsibilities and have a working relationship with the boss . 

formal