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:       Did you go camping last Saturday ?  
 Person2:We went to the coast . It's really a nice place for camping , really good time around the fire singing and dancing .  
 Person1:        How many members were in your party in all ?  
 Person2:There were six of us .  
 Person1:        Did you get caught in the bad storm ?  
 Person2:Yes , we got wet through . But we still enjoyed ourselves . 

informal