Given the task definition and input, reply with output. 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: Three other people started to bid . One called himself Buddhabuyer , so I knew he meant business . I raised my bid twice , but it kept going up .
Person2:How high did the price go ?
Person1: I don't know . I dropped out at $ 250 .
Person2:You didn't watch the end of the auction ?
Person1: No . It wasn't the super bargain I thought it was .
formal