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:       You seem really ticked off . What's up ? 
 Person2:Just get out of my face , would you ? 
 Person1:        Chill out ! What's eating you , anyway ? 
 Person2:Sorry . I'm just that I think I blew the final and now my parents are going to get all bent out of shape . I like totally drew a blank on everything ! 
 Person1:        Well , now you're really going to freak out when I tell you who aced it ... what's-her-face ... the one who always kisses up to the teacher . 
 Person2:Jennifer Davies ? Give me a break ! I can't stand her . She's such a dweeb ! How could she possibly ace it when she keeps cutting class all the time ? 
 Person1:        She's the teacher's pet , that's why . Besides , he's so laid back he lets her get away with it . She just really rubs me the wrong way . And you know what ? I think she's got the hots for him , too . 
 Person2:Get out of here ! 
 Person1:        I'm dead serious . Yesterday , before class starts , she walks up to Mr - Edward's desk and goes , ‘ Good morning , Jim . ’ 
 Person2:Oh , gag me ! She's totally gross ! 

informal