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:       Julia , will you be my wife ?  
 Person2:I'm sorry , Steven .  
 Person1:        Please , Julia , I have made proposal to you five times . I really want to share the rest of my life with you .  
 Person2:I know . But I ’ m not ready for married life yet .  
 Person1:        Julia , I really love you . I hope I can stay with you no matter you are happy or sad in future .  
 Person2:Your way does touch my heart .  
 Person1:        So , will you marry me ?  
 Person2:I want to think of it for some time . 

informal