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'.
Input:  Person1:       I'm pleased to meet you again , Mrs . King .  
 Person2:Pleased to see you , too , Mr . Brown .  
 Person1:        You've had a good trip , I hope .  
 Person2:Yes , a very pleasant journey , thank you .  
 Person1:        It's been a full two years since we last saw each other .  
 Person2:So it is , I've come again to renew our sole agency agreement for another 2 years .  
 Person1:        We shall be pleased to talk the matter over with you . You've done very well in fulfilling the agreement .  
 Person2:I'm glad you're satisfied with our work . I can assure you we've spared no effort and spent quite a sum of money in pushing the sales of your products .  
 Person1:        Yes , we appreciate your efforts in pushing the sales of our pianos . We can see you are experienced in this particular line .  
 Person2:Thank you .  
 Person1:        But I think the annual sale of 300 pianos for a sole distributorship in Canada is rather conservative . After all , you sold around 400 pieces there last year . You can sell more this year according to the marketing conditions at your end .  
 Person2:That is the result of our hard work . Well , what annual quantity would you suggest for the new agreement then ?  
 Person1:        500 pieces .  
 Person2:No , no . That's too big a number to be acceptable . Let's put it at 450 pieces . And we'll strive to sell more , of course . We wish to add another clause . For every 50 pieces sold in excess of the quota , we'll get 1 % more in commission for our efforts .  
 Person1:        All right , let's fix it at 450 pieces then . And for every additional 50 pianos sold , we'll give you 1 % higher commission .  
 Person2:I suppose all the other terms remain unchanged .  
 Person1:        We would like to make a specific mention of one more point . As our sole distributor , you will neither handle the same or similar products of other origins nor re-export our goods to any other area outside your own .  
 Person2:No , certainly not . That's a reasonable restriction .  
 Person1:        Another thing is that every six months we would like to receive from you a detailed report on current market conditions and the users comments on our products .  
 Person2:Yes , we've already prepared one . I've brought it with me . I'll put it forward when we talk with the manufacturers tomorrow .  
 Person1:        Good , that's all then .  
 Person2:Good . 

informal