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 don't understand why some parents keep beefing and complaining about their daughters not being able to follow suit .
Person2:Yeah . Li Na's mother has been building a fire under her since her neighbour's daughter got married with a Canadian . She's almost driving Li Na crazy .
Person1: If I were Li Na , I would ask her if she had done that .
Person2:She is as meek as a lamb . She never goes against anyone or anything . She's as good as gold , you know ?
Output:
formal