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 say ...  
 Person2:Say it ! What is it ?  
 Person1:        That I can't go on any longer without you .  
 Person2:You know you shouldn't say that at a time like this .  
 Person1:        Nancy , I made up my mind you were the only woman for me at the first sight .  
 Person2:Too sudden ! I'm not ready for it .  
 Person1:        Forgive me for startling you with the impetuosity of my sentiments .  
 Person2:Stop it . No more of that talk .  
 Person1:        I really love you .  
 Person2:No , I shall faint .  
 Person1:        And I hope so . This is what you were meant for . Say you love me , say yes , say yes .  
 Person2:Yes . 

informal