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:       What are you going to do after you return from Washington ?  
 Person2:I'm going to stay in the city .  
 Person1:        What will you do all day ?  
 Person2:I'm going to work with my father at the store . In the evening , I'll read books.On weekends , I'll go to the beach with my family .  
 Person1:        Have you ever worked ?  
 Person2:No , but I can learn . What are you going to do this summer ?  
 Person1:        I'm going to camp . I've gone to camp for four summers .  
 Person2:I've never gone to camp . What do you do there ?  
 Person1:        We do many things . In the morning , we go swimming and boating . In the afternoon , we play basketball or tennis . We sit around a camp fire at night.We sing or tell stories .  
 Person2:That sounds wonderful .  
 Person1:        It is wonderful . What's John going to do this summer ?  
 Person2:I think he's going to the mountains with his parents .  
 Person1:        Well , so long , Mary . Have fun .  
 Person2:You too , Peter . Give my regards to John . I'll see you in September . 

informal