You will be given a definition of a task first, then some input of the task.
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'.

Person1: You ran into my car .
Person2:That was my fault . I'm sorry .
Person1: You messed up my car .
Person2:I don't see any damage .
Person1: My rear bumper is messed up .
Person2:I don't see anything wrong with it .
Person1: It's smashed in .
Person2:That's not my fault .
Person1: The same thing is wrong with your bumper .
Person2:I'll take care of everything . I just need your phone number and insurance .
Person1: I need your information too .
Person2:Here you go .
Output:
informal