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:       Can I help you , sir ?  
 Person2:I wish to buy a diamond ring .  
 Person1:        How many carats would you like it to be ?  
 Person2:I want five carats .  
 Person1:        Is this one suitable for you ?  
 Person2:No , it seems too old-fashioned to my fiancee .  
 Person1:        What about this ?  
 Person2:It seems too small for me , haven't you got any larger ones ?  
 Person1:        Then you can buy this one . It's very nice and latest in style .  
 Person2:Oh , this one is perfect . 

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:       is this seat taken ?  
 Person2:no . please sit down .  
 Person1:        thanks .  
 Person2:are you also going to Beijing ?  
 Person1:        yes , on a business trip . How about you ?  
 Person2:I'm taking a vacation to visit a friend there . Have you ever been there before ?  
 Person1:        yes , I went there once last summer .  
 Person2:really ? What did you think ?  
 Person1:        I think it is amazing . You can enjoy both the traditional Chinese culture as well as the vitality of a modern cosmopolitan city . The only thing I didn't enjoy was the subway .  
 Person2:was it that crowded ?  
 Person1:        yes . There were always so many people . After taking the subway during the rush hour , you ’ ll envy sardines in their cans .  
 Person2:oh , maybe I can take the bus or even rent a car .  
 Person1:        that's a good idea . Wish you a great vacation !  
 Person2:thank you very much ! 

SOLUTION:
informal

