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:       I hate landing in the sand trap ! Now I'm probably going to waste strokes getting it out . 
 Person2:At least you haven't landed in the water yet . I've done that on the last two holes . 
 Person1:        Could you hand me my wedge ? I'll try ... 
 Person2:Here you go . I'll wait for you to get on the green before I putt . 
 Person1:        No . you go ahead and putt it out . Then I'Il go . 
 Person2:No way , Mary . I'm going to let you go first . I don't want the pressure of putting first . 
Output:
informal