Which is worth it?

I need:

- A way for the client to book on the website

- sync with the booking.com calendar so if a date is booked via website it will appear booked on booking.com

- maybe deposit or full payments via credit/debit cards & PayPal

- a way for the hotel/motel manager to accept/reject bookings via something else other than wp panel ( ive heard they have an app called "Hotel Booking")

- email confirmation for the manager and the client

- in the future I might be doing a motel website so there will be multiple rooms to take care of.