i would like to book a flight on us air first class from cleveland to miami on february twenty fourth
O O O O O O O O B-airline_name I-airline_name B-class_type I-class_type O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number