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: Can I help you ?
Person2:I hope so . I'm looking for some material for a paper I'm writing , and I'm not quite sure where to look .
Person1: I'll certainly try to help you . What topic is your paper on ?
Person2:My paper is on the influence of television on children .
Person1: There are several possible sources you might use for that topic . I suggest you use the computer and the computer will give you a list of every scientific journal that talks about children and television .
Person2:Thank you for you help .
Output:
informal