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:       If I can improve my vertical jump a few more inches , I think beach volleyball might be my ticket . 
 Person2:But whenever we play , you just sit on the sand , drink beer , and watch the girls ! 
 Person1:        It's a beautiful sport , isn't it ? 
 Person2:To be honest , I don't think you could even win a gold in hopscotch ! 
 Person1:        OK , OK . Enough already . We'd better hustle . The contest starts in five minutes . 

formal