on august thirtieth please schedule me on a flight from denver to san francisco early in the morning
O B-depart_date.month_name B-depart_date.day_number O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_time.period_mod O O B-depart_time.period_of_day