airport codes. = 'Austin': 'AUS', 'London': 'LHR', 'Dallas': 'DAL', 'Seattle': 'SEA', } 'Cincinnati': 'CVG' Type the program's output new_airport_codes = { } 'San Francisco': 'SFO', 'Chicago': 'ORD', 'Tokyo': 'NRT' print (airport_codes.get('Paris', 'na')) print (airport codes.get('San Francisco', 'na')) print (airport_codes.get('Dallas', 'na')) airport codes.update (new_airport_codes) print (airport_codes.get('Paris', 'na')) print (airport_codes.get('San Francisco', 'na')) print (airport_codes.get('Dallas', 'na'))