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 should save some money on parking here . 
 Person2:Yeah , I don ’ t have to pay for a space on the street . 
 Person1:        Really ? How long did it take you to find a spot yesterday ? 
 Person2:Well , last night it took me half an hour to find a spot when I came home from work . 
 Person1:        You get home late , don ’ t you ? 
 Person2:Yeah , around seven . Most of the street parking is gone by then . 
 Person1:        Ah , well . You can ’ t have everything . 
 Person2:Yeah . I can live with it . It ’ s great to be living alone . 

informal