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: Look , the printer isn ' t functioning well . I ' Ve pushed the start button . It is suppose to be working now but it remains like a log . What ' s going on ?
Person2:Let me check . It has a paper jam .
Person1: I didn ' t pay attention to that . I will try to get the paper out .
Person2:Be careful , the cartridge can be very hot .
informal