i'd like an afternoon flight from atlanta to san francisco with a stopover in denver arriving i'd say about mealtime
O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name O O O B-arrive_time.time_relative B-arrive_time.time