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 have an issue .
Person2:What ' s going on ?
Person1: There is a leaking pipe in my wall .
Person2:Is there any water damage ?
Person1: There is mildew .
Person2:I ' ll go to your apartment tomorrow to fix the pipe .
Person1: Why can ' t I call someone to fix it today ?
Person2:I ' ll just do it myself .
Person1: I need it done today .
Person2:You ' re right about that .
Person1: Are you okay with me calling a plumber ?
Person2:That ' s fine .
Output:
formal