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:       Who are those guys ?  
 Person2:Kobi Bryant and Shaquille O ’ Neal , they are the Los Angeles Lakers ’ star players .  
 Person1:        Oh .  
 Person2:Wait a second . He shoots , he scores !  
 Person1:        All right !  
 Person2:Here comes Jordan , though .  
 Person1:        Wow , Michael Jordan ’ s slam-dunks are beautiful things to watch .  
 Person2:Yeah . He ’ s older , so he doesn ’ t slam , as much as he did when he was younger , but when he does , it ’ s still amazing .  
 Person1:        Which team do you think will win ?  
 Person2:The Lakers . Jordan is the only good player Washington has . 

informal