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:       Hello , this is Francis .  
 Person2:Hi , this is Monica . I was wondering when we can work on this financial report .  
 Person1:        Today , I am busy all day long .  
 Person2:Shall I see you on Friday morning ?  
 Person1:        That ’ s not good for me at all.It ’ ll have to be another time .  
 Person2:We must find some time to read report .  
 Person1:        I know . I am available from 1 PM to 4 PM on Friday afternoon .  
 Person2:That ’ s all right . Then see you on Friday afternoon .  
 Person1:        See you . 

informal