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 really don't know how to break this to you , but it ’ s eating me alive !  
 Person2:Just tell the truth . I won ’ t take it personally .  
 Person1:        Well ... hum . You are sure you won ’ t lose control of yourself ?  
 Person2:Sometimes it's wise to be direct with people . Come on , just tell me . Don't beat around the bush , please !  
 Person1:        Well . Since you ’ d like an honest answer , I will tell you the truth .  
 Person2:Alright . What is that you want to tell me ?  
 Person1:        We ’ Ve won two free tickets to Hawaii for a seven-day vacation !  
 Person2:What ? Are you serious ? Oh , my gosh ! There will be guys everywhere . 

informal