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:       They promised us a sea view .  
 Person2:Well , you can just see the sea . Between the factory chimneys .  
 Person1:        Isn't it awful ? I can't bear to look at it . I don't think I can stand this place for two weeks .  
 Person2:Well , it can't be helped . We'll just have to put up with it . 

informal