The official ticketing website showed that reservations were fully booked, but I found that Klook had availability. Since the booking and departure dates were very close, I was warned that there might be no seats and the reservation could be cancelled. The scheduled voucher issuance date continuously showed "processing," so I had already assumed the chances of success were low. Unexpectedly, I received the ticket voucher two days before departure. Booking through Klook was very convenient and allowed me to make the trip.
