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'.

Ex Input:
Person1: Can I talk to you for a moment , manager ?
Person2:Yes , of course . What is it ?
Person1: I've decided to leave .
Person2:Leave ? Why ?
Person1: I've worked here for two years . And I want to do something different .
Person2:What do you mean by something different ?
Person1: I want to live abroad and learn to speak a different language .
Person2:I'm really sorry . But I understand .
Person1: Thank you , manager .

Ex Output:
formal

Ex Input:
Person1: Hey Michelle . Good to see you . Are you at lunch ?
Person2:Oh hi Jim . No I just got back . I thought you were on vacation now .
Person1: No , I wish I was ! I just got back from Spain actually .
Person2:Oh wonderful ! Have you been there before or was it your first time ?
Person1: My first time . I've traveled around Europe a lot , but this was my first time to Spain . It was amazing , and the weather was just beautiful ! No rain , and just sun , sun , sun ...
Person2:I'm so jealous of you . I've never been anywhere in Europe . I've always dreamed of traveling around and seeing the sights .
Person1: Well , I really recommend Spain . You really should go . Anyway , it's been great to catch up , but I must be going , this is my floor . Speak again soon I hope .

Ex Output:
informal

Ex Input:
Person1: Let's go see pandas ! The news said that two pandas arrived at the zoo last week .
Person2:Great ! I would like to see cute pandas , too .
Person1: How can we get there ?
Person2:We can take the MET and get off at the Zoo Station .
Person1: OK ! Let's go .
Person2:( At the zoo ) Wow ! This zoo is really huge .
Person1: Yes , you can find hundreds of various animals here . It is the biggest zoo in Taiwan .
Person2:Look at the map . It has different areas , such as marine lives , mammals , polar animals and insects .
Person1: Where can find the pandas ? I think we are here to see the pandas .
Person2:We have to go to the mammal area . We are at the gate right now . We need to go straight from here and turn left and go along to the end and make anotherleft turn .
Person1: It should take at least 20 minutes to get there . Are there any shuttle buses running place to place around the whole zoo ?

Ex Output:
informal