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 take shell 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:Sounds like she has pretty pricy tastes .  
 Person1:        Well , I really like being with her .  
 Person2:Have you thought about going in Dutch ?  
 Person1:        Dutch , where is that ?  
 Person2:Not where , what . Dutch means you both pay your own way .  
 Person1:        Oh , I wonder if she ’ ll go for that . 

formal