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:       Well , let's have your firm order .  
 Person2:Yes , here is our offer , 30,000 skirts at 200 yuan per skirt , FOB New York . You will find our price comes in line with the prevailing market .  
 Person1:        Your price is rather high . We cannot accept it . Can you bring the price down a little ?  
 Person2:In fact , if it weren't for our good relations , we wouldn't consider making you a firm order at this price .  
 Person1:        I can't agree with you . We have quotation from other sources too . Their prices are lower than yours .  
 Person2:But you know our design is superior to any other products from other companies . In fact , there is no room to negotiate the price now . You should be aware that the production cost alone has doubled in the past year .  
 Person1:        It doesn't seem very hopeful to close the deal on this price . 

informal