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:       I can ’ t wait to retire .  
 Person2:And then what ?  
 Person1:        And then I ’ m moving to Florida where I can play golf all day , every day !  
 Person2:That sounds boring to me .  
 Person1:        What do you plan on doing after you retire ?  
 Person2:Yes , I think I will do something new . I ’ Ve always wanted to be a teacher .  
 Person1:        I admire your energy , Ruth . You are young at heart . 

formal