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:       It's said you will go abroad to pursue your graduate studies . 
 Person2:Yes , I've been thinking about visiting you . I hope to get some advice from you . 
 Person1:        Which country do you want to go to ? 
 Person2:My field is electronic engineering . Which country do you think I should go ? 
 Person1:        Were I in your position , I'd go to America . 
 Person2:Which university should I apply to ? 
 Person1:        There are many universities for you to choose from . Some famous universities such as Harvard , Yale , the University of Michigan , and Massachusetts Institute of Technology are really wonderful places to study , but they are very competitive and expensive . Some smaller universities or institutes are also very nice but much cheaper . 
 Person2:Oh , I see . Thank you very much . 

formal