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:       Hi , John Phillips ? I ’ m Rose Green . I ’ Ve been asked to handle your training and introduce a little bit of the company to you . It ’ s nice to meet you . 
 Person2:It ’ s nice to meet you , too , Ms . Green . This company seems so big right now ; I don ’ t know how I ’ ll ever get used to it . 
 Person1:        After a week , you ’ ll be running around here like a pro . Let me give you this list of departments first , next to each department is its location and the name of the manager . 
 Person2:Great – That ’ ll be big help . 

informal