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:       Marquet , do you think I should enroll in the science course ?  
 Person2:Yes , I think so . If you want to graduated this year , you've got to take a science course .  
 Person1:        Right , I figure since you are doing premedical , you know about the very courses .  
 Person2:Well , I have to take biology , chemistry , maps and physics . What you need is a good introductory course for non-science majors .  
 Person1:        Yes , I'm really weak in maps , I did poorly in high school .  
 Person2:That's a problem . 

formal