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 grinning about ? 
 Person2:Stephany said she would go out with me . 
 Person1:        I thought mom said no dating till you are 16 . 
 Person2:That ’ s in one month , and besides , this is a group date with all of our friends . 
 Person1:        All of your friends , what are you planning to do ? 
 Person2:We ’ re going fishing . 
 Person1:        What a party ! I hope you don ’ t expect the girls to fish . 
 Person2:These girls are different , they are not wimpy . 

formal