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 take Shield on a date but I don't have much money . 
 Person2:What does she like to do ? 
 Person1:        She likes to golf , dance , and eat foreign food . 
 Person2:Hmm . Sounds like she has pretty pricey tastes . 
 Person1:        Well , I really like being with her . 
 Person2:Have you thought about going Dutch ? 
 Person1:        Dutch , where's that ? 
 Person2:Not where , what . Dutch means you both pay your own way . 
 Person1:        Oh . I wonder if she'll go for that . 

formal