We are looking for an online booking system for a hotel

We are looking for a cloud solution for room reservations in a Swiss hotel, which should fulfill the following requirements:

• Room reservations for double and single rooms with extra beds (approx. 25 rooms)
• Hostal reservations, individual beds, as in youth hostels
• Website module for reservations via your own website
• Comparison with booking portals such as booking.com
• Issuing of invoices etc.
• Tasks for hotel staff such as room cleaning etc.
• Customer management
• Simple operation
• Data security