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:       How many languages can you speak ?  
 Person2:Besides Chinese , I can speak English and French .  
 Person1:        You mean you can read and write both of them ?  
 Person2:No , I can only carry on a simple conversation in French .  
 Person1:        Can you read and write English well ?  
 Person2:I can speak the language better than I read and write .  
 Person1:        Do you speak the language well enough to communicate with people of English-speaking countries ?  
 Person2:I think so . I used to be an interpreter .  
 Person1:        Do you think your English is good enough to do desk work ?  
 Person2:The amount of English I know enables me to do general desk work . I believe what I know is sufficient to work in an American firm . 

formal