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 want to meet you . Are you free this evening ? 
 Person2:Well , actually , I'm not free today . Do you have anything urgent ? 
 Person1:        No , I just want to meet you . 
 Person2:How about tomorrow instead . 
 Person1:        Hmm , that's all right . Shall we meet at the bar near the beach ? 
 Person2:All right . See you then . 

formal