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'.
--------
Question: Person1: Why do you want to be a teacher ?
Person2:It's a job I've been dreaming of since I was very little . I firmly believe that teaching is one of the most honorable jobs in the world .
Person1: In what department do you wish to work if we hire you ?
Person2:I want to work in the English Department , as I am an English major .

Answer: formal

Question: Person1: Look , my clothes are wet .
Person2:Mine are wet , too .
Person1: Unexpectedly , a girl threw a bucket of water on me .
Person2:She wished good luck to you .
Person1: The Dai people are enthusiastic .
Person2:Yes .

Answer: informal

Question: Person1: Merry Christmas , Bill !
Person2:Merry Christmas . Steven !
Person1: What do you want to do to celebrate Christmas ?
Person2:I'll have supper with my girlfriend and go shopping . What about you ?
Person1: I'll go to church first and then go to a Christmas party . Would you like to come ?
Person2:I'd love to . But I am going to meet my girlfriend right now . See you later .
Person1: See you .

Answer:
informal