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:       You'll soon graduate from your university . Do you have any plans for the future ?  
 Person2:I'm planning to go to graduate school , but I also want to find a job . Otherwise , I'll have nowhere to go if I fail the entrance exam .  
 Person1:        Do you have a clear career path to follow ?  
 Person2:career path ? I'm not sure .  
 Person1:        what kind of job do you want after graduation ?  
 Person2:I want to become a professor , a lawyer , an editor , a civil servant ...  
 Person1:        wait ! You can't do so many things at the same time . What exactly do you want ?  
 Person2:I don't know . Do you have any advice for me ?  
 Person1:        yeah , you should first decide what kind of career you really want , plan your career path , and then try your best to achieve your goal .  
 Person2:I think perhaps I need to buy a few years while I figure out about my career .  
 Person1:        no , you can't waste your time wandering around . If you want a job that requires a higher degree or diploma , you should focus on your graduate school entrance exam ; if you want a job that needs working  
 Person2:thank you so much for your advice . I'll think it over . 

informal