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: I hear you bought a new house in the northern suburbs .
Person2:That ' s right , we bought it the same day we came on the market .
Person1: What kind of house is it ?
Person2:It ' s a wonderful Spanish style .
Person1: Oh , I love the roof tiles on Spanish style houses .
Person2:And it ' s a bargaining . A house like this in river side costs double the price .
Person1: Great , is it a two bedroom house ?
Person2:No , it has three bedrooms and three beds , and has a living room with a twelve-foot ceiling . There ' s a two-car garage .
Person1: That ' s a nice area too . It ' ll be a good investment for you .
Person2:Yeas , when will you buy a house ?
Person1: Not untill the end of this year , you know , just before my wedding .
Person2:Right , congratulations .
Person1: Thank you .
[A]: informal

[Q]: Person1: Do you think that climate change is responsible for the recent floods ?
Person2:It could be . There are floods in this country almost every year , but in recent years they have been more widespread and more frequent .
Person1: It seems that the climate in this country is changing .
Person2:The summers are hotter . The last three summers have been the hottest for the past 200 years . There have also been stronger winds .
Person1: I think that the changing climate is a sign that we are causing too much damage to the environment .
Person2:I think you ' re right . Climate change naturally over time , but I think that human activities are speeding up the change . I wish that government would join together and try to resolve the problem .
Person1: Me too . If we don ' t do something soon , It might be too late .
[A]: formal

[Q]: Person1: Have a nice weekend .
Person2:Same to you .
[A]:
informal