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:       Have you found another job yet , Sally ?  
 Person2:No , I haven't , but I've seen several interesting advertisements in the paper .  
 Person1:        What kind of job are you looking for ?  
 Person2:Either something in the hotel business or something to do with travel .  
 Person1:        You haven't had any experience in either of those fields .  
 Person2:I know.But I'd like to try.Look , here are some advertisements that I've cut out . 

formal