Коллеги, привет!
по доработке аэроэкспресса  (в идеале):

1) текущее значение параметра type ("standard") нужно перенести в type_name
2) type должен быть "aeroexpress-1" для направления в аэропорт и "aeroexpress-11" для направления из аэропорта
3) Крайне желательно избавиться от параметра service_hash  или перенести его в параметр id. (на своей стороне вы же сможете определять id имея хеш сервиса?)
4) train_number, departure_station, arrival_station, departure_date - нужно перенести в новый параметр freetext.   формат данных в этом параметре - json_encode массив:

{"AEROEXPRESS_id":"11","AEROEXPRESS_description":"1 \u043f\u043e\u0435\u0437\u0434\u043a\u0430 \u0432 \u0432\u0430\u0433\u043e\u043d\u0435 \u0421\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u043e\u0433\u043e \u043a\u043b\u0430\u0441\u0441\u0430 \u043f\u043e \u043b\u044e\u0431\u043e\u043c\u0443 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0443 \u0410\u044d\u0440\u043e\u044d\u043a\u0441\u043f\u0440\u0435\u0441\u0441 \u0432 \u0442\u0435\u0447\u0435\u043d\u0438\u0435 30 \u0441\u0443\u0442\u043e\u043a \u0441 \u0434\u0430\u0442\u044b, \u0443\u043a\u0430\u0437\u0430\u043d\u043d\u043e\u0439 \u0432 \u0431\u0438\u043b\u0435\u0442\u0435 (\u0432\u044b\u0431\u0440\u0430\u043d\u043d\u043e\u0439 \u043f\u0440\u0438 \u043f\u043e\u043a\u0443\u043f\u043a\u0435). \u0421\u043a\u0438\u0434\u043a\u0430 10% (\u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0430 \u0432 \u0441\u0442\u043e\u0438\u043c\u043e\u0441\u0442\u044c) \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0437\u0430 \u043f\u0440\u0438\u043e\u0431\u0440\u0435\u0442\u0435\u043d\u0438\u0435 \u0431\u0438\u043b\u0435\u0442\u0430 \u043e\u0442 4 \u0434\u043e 90 \u0441\u0443\u0442\u043e\u043a \u0434\u043e \u043f\u0440\u0435\u0434\u043f\u043e\u043b\u0430\u0433\u0430\u0435\u043c\u043e\u0439 \u0434\u0430\u0442\u044b \u043f\u043e\u0435\u0437\u0434\u043a\u0438.","AEROEXPRESS_order_type":"40","AEROEXPRESS_max_days":"180","AEROEXPRESS_last_id":"true","AEROEXPRESS_name":"\u041f\u0440\u0435\u0434\u0432\u0430\u0440\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439","AEROEXPRESS_seats_select":"false","AEROEXPRESS_label":"\u0422\u0430\u0440\u0438\u0444","AEROEXPRESS_max_tickets":"10","AEROEXPRESS_departure_date":"2019-05-24","AEROEXPRESS_departure_date_hum":"24 \u041c\u0430\u044f 2019","AEROEXPRESS_direction":"TO_AIRPORT","AEROEXPRESS_from":"\u041a\u0438\u0435\u0432\u0441\u043a\u0438\u0439 \u0432\u043e\u043a\u0437\u0430\u043b","AEROEXPRESS_to":"\u0410\u044d\u0440\u043e\u043f\u043e\u0440\u0442 \u0412\u043d\u0443\u043a\u043e\u0432\u043e","AEROEXPRESS_timetable_hum":{"night":[{"departure":"00:00","arrival":"00:35"},{"departure":"00:30","arrival":"01:05"}],"morning":[{"departure":"05:30","arrival":"06:05"},{"departure":"06:00","arrival":"06:35"},{"departure":"06:30","arrival":"07:05"},{"departure":"07:00","arrival":"07:35"},{"departure":"07:30","arrival":"08:06"},{"departure":"08:00","arrival":"08:35"},{"departure":"08:30","arrival":"09:07"},{"departure":"09:00","arrival":"09:37"},{"departure":"09:30","arrival":"10:07"},{"departure":"10:00","arrival":"10:37"},{"departure":"10:30","arrival":"11:07"},{"departure":"11:00","arrival":"11:35"},{"departure":"11:30","arrival":"12:07"}],"day":[{"departure":"12:00","arrival":"12:35"},{"departure":"12:30","arrival":"13:05"},{"departure":"13:00","arrival":"13:35"},{"departure":"13:30","arrival":"14:05"},{"departure":"14:00","arrival":"14:35"},{"departure":"14:30","arrival":"15:05"},{"departure":"15:00","arrival":"15:35"},{"departure":"15:30","arrival":"16:05"},{"departure":"16:00","arrival":"16:35"},{"departure":"16:30","arrival":"17:05"},{"departure":"17:00","arrival":"17:35"},{"departure":"17:30","arrival":"18:05"}],"evening":[{"departure":"18:00","arrival":"18:36"},{"departure":"18:30","arrival":"19:07"},{"departure":"19:00","arrival":"19:38"},{"departure":"19:30","arrival":"20:08"},{"departure":"20:00","arrival":"20:36"},{"departure":"20:30","arrival":"21:07"},{"departure":"21:00","arrival":"21:36"},{"departure":"21:30","arrival":"22:05"},{"departure":"22:00","arrival":"22:35"},{"departure":"22:30","arrival":"23:05"},{"departure":"23:00","arrival":"23:35"},{"departure":"23:30","arrival":"00:05"}]},"AEROEXPRESS_timetable_open":"05:30","AEROEXPRESS_timetable_close":"00:30"}


Данный массив нужно по максималке заполнить по аналогии вашими данными, насколько это возможно. Если что-то где-то не получается, дайте знать, будем обсуждать.