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: There has been talk at school about canceling the concert .
Person2:Really ? Who did you hear that from ?
Person1: Just word of mouth .
informal

Person1: Good afternoon . I believe that this house is for sale .
Person2:That's right .
Person1: May I have a look at it please ?
Person2:Yes , of course . Come in .
Person1: How long have you lived here ?
Person2:I have lived here for twenty years .
Person1: Twenty years ! That's a long time .
Person2:Yes , I have been here since 1976 .
Person1: Then why do you want to sell it ?
Person2:Because I have just retired . I want to buy a small house in the country .
Person1: How much does this house cost ?
Person2:6850 pound .
Person1: That's a lot of money !
Person2:It's worth every penny of it .
Person1: Well , I like the house , but I can't decide yet . My wife must see it first .
Person2:Women always have the last word .
informal

Person1: Nick ! How ' s it going ?
Person2:Oh , hey ...
Person1: What are you doing in this neighbourhood ? Do you live around here ?
Person2:Actually , my office is right around the corner .
Person1: It was great to meet you last week at the conference . I really enjoyed our conversation about foreign investment .
Person2:Yeah , yeah , it was really interesting . You know , I'm in a bit of a hurry , but here ' s my card . We should definitely meet up again and continue our discussion .
Person1: Sure , you still have my contact details , right ?
Person2:You know what , this is really embarrassing , but your name has just slipped my mind . Can you remind me ?
Person1: Sure , my name is Ana Ferris . Don ' t worry about it . it happens to me all the time . I ' m terrible with names too .
formal