What is the best practice for writing REST endpoints

I want to add REST endpoint that will add reservation for some room in hotel. What is the better way to do it. I have 2 solution:

@RequestMapping("api/v1/hotels/hotelId/rooms/roomId/reservations")
some Class Endpoint

    @PostMapping
    public ReservationApi save(final @RequestBody ReservationApi reservationApi,
                               final @PathVariable("hotelId") String hotelId,
                               final @PathVariable("roomId") String roomId) {
        final Reservation reservation = reservationMapper.toDomain(reservationApi);
        return reservationMapper.toApi(reservationService.save(reservation, hotelId, roomId));
    }

and build Reservation on service side

or I have alternative solution where we do not use paths and only API class for creating

@RequestMapping("api/v1/reservations")

    @PostMapping
    public ReservationApi save(final @RequestBody ReservationApi reservationApi) {
        final Reservation reservation = reservationMapper.toDomain(reservationApi);
        return reservationMapper.toApi(reservationService.save(reservation));
    }