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:       Hello ? 
 Person2:Hi , Randy . What are you going to do this weekend ? 
 Person1:        I ’ Ve no idea . Nothing really . 
 Person2:How about going hunting with me ? 
 Person1:        Wonderful . 
 Person2:Okay . I ’ ll pick you up around 6 
 Person1:        I ’ ll be ready . 

informal