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'.
Q: Person1: May I help you ?
Person2:I would like to return this book .
Person1: May I do anything else for you ?
Person2:I would also like to check out this magazine .
Person1: I can ' t let you do that .
Person2:Why is that ?
Person1: Our policy doesn ' t allow anyone to check out the magazines .
Person2:What things am I allowed to check out ?
Person1: You are only allowed to check out books or videos .
Person2:I really need to check out this magazine .
Person1: I ' m sorry , but that ' s our policy .
Person2:That ' s stupid .
A:
informal