TASK DEFINITION: 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'.
PROBLEM: Person1: He has come to life in the end .
Person2:Oh , thank God . We all felt frightened by the bad new about him .
Person1: Yes . Fortunately , an ambulance passed in the nick of time , and we got him away to hospital .
Person2:Right . Unless , who know what will happen .
Person1: Wish him to be healthy soon .

SOLUTION: informal

PROBLEM: Person1: Cathy , I'd like to introduce the new microwave stove of mine to you , because it is easy to use .
Person2:OK , it so happened I want to buy one .
Person1: This microwave stove has many functions . Let me show you . For example , if you want to cook meat , you just need to put meat in it , and press the button with a picture of meat , that ' s OK . After several minutes , you can eat the delicious meat .
Person2:I think it ' s good , and it suits me , because I'm not good at cooking . Is it expensive ?
Person1: Oh , it is not so expensive . It only costs me 280 dollars .

SOLUTION: formal

PROBLEM: Person1: Which kind of sport do you like to watch ?
Person2:Basketball , football , table tennis . I will watch them on TV .
Person1: So you must like NBA game .
Person2:Yeah , it is my favorite . Many Chinese people including women and children would like to concern the game . I think they want to see the performance of coming and YiJianLian , the Chinese players in NBA .
Person1: What kind of sport do you like to participate in ?
Person2:I am good at tennis and skiing . What about you ?
Person1: I prefer the indoor sports , such as bowling , badminton and squash .
Person2:Moderate exercise is really important for health . ' Life lies in movement . '
Person1: How about playing tennis with me ?
Person2:Good idea . I will take the racket .

SOLUTION:
informal