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:       Cindy , I have this room to myself ?  
 Person2:It's all yours .  
 Person1:        It's twice as big as my room in Taiwan !  
 Person2:Well , I hope it's comfortable enough for you .  
 Person1:        I think I'm going to like it here .  
 Person2:You have a phone on the bedside table that you can use .  
 Person1:        Wow , I have my own bathroom !  
 Person2:Kind of . It leads to my bedroom .  
 Person1:        We share the same bathroom , in other words . 

informal