When I was at Hayato station, I tried to contact the hotel for the request of shuttle, they picked us up immediately even though we had no prior notification for that request before.
The day after, we wanted to visit everwhere in Kirishima but on the same day, we had to go back to the airport. To prevent from taking bulky luggages, they were willing to brought us luggage at Hayato station when we finished visiting, then brought us to the airport by shuttle too. What a nice service that...