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:       Jack I hear you have a chance to go to college without taking a test . Is that right ? 
 Person2:The news goes so fast . Ah , yes , I haven't decided yet . 
 Person1:        Don't hesitate . That's a very famous university which a lot of students are longing to attain . 
 Person2:Maybe you are right . But the major is not fit for me . I like architecture more than computers . 
 Person1:        But this chance is really precious . 
 Person2:Well , I know . So I am thinking now . 
 Person1:        I hope you can make a clever choice . Anyway , the opportunities around you are not that By . 
 Person2:Thank you for your kindness . I will think about it carefully . 

informal