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:       I passed all the tests , Mom . 
 Person2:Well done ! 

SOLUTION: informal

PROBLEM:  Person1:       Since China was open to the outside world , its trade forms have become much more flexible . One of these commonly used forms is co-production . Would you please do a bit explanation of it , Mr . Walker ?  
 Person2:Well , under this arrangement two parties cooperate to manufacture a product or a category of products , for example , machine tools for export . Each party produces and supplies a part of the components and parts ; one party is a Chinese enterprise , the other , an overseas firm . Most probably , the foreign counterpart contributes technology and equipment , and sometimes , parts and components , while the Chinese enterprises factory building , labor and other resources to the cooperative production . They join hands and fulfill orders together by an agreement or a contract .  
 Person1:        I suppose that the assembling of these components and parts , particularly the marketing of the finished products should take place in China .  
 Person2:Not necessarily . It depends on the contract stipulations . They may be marketed in the foreign country where the other party is located , or even in a third country .  
 Person1:        I think the principle of co-production is to expand export trade . It's a reciprocal business , isn't it ?  
 Person2:Yes , you are right . Either party is not well-equipped to produce the final products single-handedly , but they can enter into an agreement . In such case , each side contributes different resources to make the manufacture of a certain product or a category of products possible . 

SOLUTION: formal

PROBLEM:  Person1:       Reservation Center , Air China . Can I help you ?  
 Person2:Yes . I'm coming to confirm my ticket .  
 Person1:        May I have your name , please ?  
 Person2:My name is Zu Ping . In fact , I have a reservation on Flight No . 125 for Zhenjiang , leaving Beijing at 2:00 p . m . tomorrow . Now I'd like to make a change of my travel schedule . Is it possible to change my booking to the day after tomorrow ?  
 Person1:        Certainly .  
 Person2:Do you have a seat available on the same flight the day after tomorrow ?  
 Person1:        Yes . You are reconfirmed on Flight No . 125 for Zhenjiang , leaving Beijing at 2:00 p . m . on January 15th .  
 Person2:Thanks a lot .  
 Person1:        You are welcome . 

SOLUTION:
informal

