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:       Do you have any special skills ? 
 Person2:I can write computer programs , I have a good command of secretarial skills . 
 Person1:        What qualifications have you got ? 
 Person2:I have a doctor license and a driving license . 
 Person1:        Do you get special training in office skills ? 
 Person2:I passed both the Cambridge Examinations ( First Certificate and the Certificate of Proficiency in English ); and studied for a year in London at the Lucas Secretarial College , ending with speeds of 120 words per minute in English shorthand and 50 words per minute in typing . I was also trained in office procedure . 
 Person1:        Please tell me about work you have done , which qualifies you for this job . 
 Person2:I ’ Ve received some special training in typing , shorthand and operating a fax machine , etc .. I ’ m experienced in IBM-PC . I can operate familiarly a word-processor , a fax machine , a photo and other office equipment . 

formal