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're from New York , aren't you ?  
 Person2:Yes , that's right .  
 Person1:        What do you suggest I should see in New York ?  
 Person2:Well , how about the Museum of Modern Art ?  
 Person1:        No , I don't like museums.They ' re boring .  
 Person2:Why don't you go to see the Empire State Building ?  
 Person1:        Ah ! That sounds interesting . 

informal