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'.

[Q]: Person1: Your total comes to $ 36.78 .
Person2:Put it on my VISA .
Person1: There ' s a problem with your card .
Person2:What ' s wrong with it ?
Person1: I believe it was declined .
Person2:You ' re kidding me !
Person1: Do you have another card I could try ?
Person2:I only have one card .
Person1: Do you have cash , perhaps ?
Person2:I don ' t have any cash on me .
Person1: You ' re not going to be able to take these items today .
Person2:I ' ll be back tomorrow .
[A]: informal

[Q]: Person1: Well , tell me something of yourself .
Person2:What would you like to know , Mr . Green ?
Person1: What working experience have you got ?
Person2:In 2004 , I got a job in the sales department of a trading company near Guangzhou . I started a sales representative . A year later , I was promoted to the position of sales manager . I had that job ever since , which is just over a year now .
Person1: Oh , good . Irene , can you tell me why you plan to quit being a sales manager to work here as my assistant ? Don't you like your present job ?
Person2:Frankly , some part of it I enjoy very much , but I prefer something more professional . It happens that I have a friend working here in this company . She told me the export department was to recruit an assistant . I felt very excited at this news . That's why I'm here .
[A]: formal

[Q]: Person1: Good afternoon . Reservations . May I help you ?
Person2:Yes , I'm calling from Tenga Company . I'd like to know if you have rooms available for the nights from October 8 to October 12 . We are going to have a business conference .
Person1: May I ask how many people there will be in the party ?
Person2:20 persons .
Person1: What kind of room would you like ?
Person2:Double rooms with twin beds .
Person1: A moment please , sir . Yes , I can confirm 10 rooms for those days .
Person2:Thank you . Is there a special rate for a group reservation ?
Person1: Yes , there is a 10 percent discount .
Person2:That is fine .
[A]:
formal