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:       Which countries have you been to ? 
 Person2:I ’ Ve been to most of the countries in Europe , several countries in asia-china , Japan , korea , and Thailand-and to the united states and Canada . 
 Person1:        I thought you had been to Australia too . 
 Person2:No , but I ’ m planning on visiting Australia and new Zealand soon . I ’ Ve heard that they are beautiful countries . Which is the most beautiful country you ’ Ve been to ? 
 Person1:        I think I ‘ d say norway . It has many picturesque fjords , waterfalls , and mountains . 
 Person2:Isn ’ t it really cold there ? 
 Person1:        Well , the north of Norway is almost always cold , but further south it can be fairly warm in summer . It ’ s a wet country , so there ’ s snow almost everywhere in winter . 
 Person2:I ’ Ve been to other Scandinavian countries , but not to Norway . Perhaps I should go and do some winter sports there . 

formal