Definition: 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: Would you like to ask any questions ?
Person2:I need to know about the fees .
Person1: What kind of fees ?
Person2:I ' m asking about overdraft fees .
Person1: You have to pay a small fee every time you overdraft .
Person2:What ' s the fee ?
Person1: The fee is $ 25 every time you overdraft .
Person2:How is that a small fee ?
Person1: That fee should keep you from overdrafting .
Person2:I ' ll say .
Person1: Do you have any more questions ?
Person2:I don ' t need to know anything else . Thank you .
Output:
formal