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:       A friend of mine has been taking an online career planning course these days . He told me the other day he has learned a lot from it . He recommended me to subscribe to it . What do you say ?  
 Person2:I think it is good if we know enough about career planning . We will make wiser choices . What else did he tell you about it ?  
 Person1:        Well , just something in general , like several key steps in planning career and how to set specific and tenable goals .  
 Person2:Sounds practical ! To be honest , sometimes I feel puzzled about my future career . I am not sure if this job suits me the best though I work very hard on it and enjoy being a hard worker . I have always wanted to try something else and learn some new skills .  
 Person1:        Making a decision to start over is not an easy thing to do . It seems that you need this course more than I do . I love my current job . If I take this course , I hope to learn some tricks to get myself more organized at work . If they can give suggestions about how to boost work relationships , that will be great . I need these to improve my current work performance .  
 Person2:Ok , then we can sign up for it together . 

formal