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: Julie , is that you ?
Person2:Yes . And you're Paul , right ? Paul Hill ?
Person1: Yes , it's me . And you're Julie Ashley . How are you ?
Person2:I'm fine . After ten years , you still look great !
Person1: So do you ! How are you doing ?
Person2:Not bad . Let's find a table and sit down . We have a lot to talk about .
Person1: Okay , let's sit over there .
informal