Instructions: 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: What case do you have against the police ?
Person2:I want to take them to court for arresting me .
Person1: I don ' t understand .
Person2:There was no reason for them to arrest me .
Person1: They let you go , didn ' t they ?
Person2:They released me the next morning .
Person1: They detained you at the station ?
Person2:That ' s exactly what they did .
Person1: Why did they arrest you ?
Person2:They said I matched the description of a robber .
Person1: I get it now .
Person2:I ' m definitely taking them to court .
Output:
informal