I would like to check-in in the morning and check out in the afternoon. How can I reserve?

This is considered as same day check-in & out. No booking is necessary. You may just walk-in and request a room for approximately HKD$150. You may give us a call when you arrive at the airport to inquire the status.  There is a free local phone located in the area between baggage claiming area and exit to the lobby.  You may inquire with the airport staff in the baggage claiming area.