予よ約やく制せい

noun

reservation system; appointment system; subscription basis

Refers to a system or arrangement where advance booking, appointments, or subscriptions are required or used. Often seen in phrases like 予約制のレストラン (a reservation-only restaurant) or 予約制のサービス (a subscription-based service).

• この病びょう院いんは完かん全ぜん予よ約やく制せいです。

  This clinic operates on a completely appointment-based system.

• 人にん気きのレストランは予よ約やく制せいなので、事じ前ぜんに電でん話わしてください。

  The popular restaurant is reservation-only, so please call in advance.