Room rental company seeks software for booking calendar

We are a room rental company and are looking for software to serve as a booking calendar for seminar rooms, including customer management and invoicing. Our range of services includes, for example, the rental of seminar and meeting rooms. We operate in the B2B sector.

The solution should meet the following requirements:

• Booking calendar for seminar rooms
• Existing customers should be able to see which rooms are available in the booking calendar via the Internet (with login) and, if necessary, make firm bookings themselves.
• Login can be done via the homepage.
• Customer management
• Invoicing from the booking calendar with e-mail dispatch based on a customer database.
• The software automatically pulls the booked hours per customer from the calendar, displays them on the invoice, and calculates the invoice amount based on the stored hourly rates.
• The invoices are collected for final review and then sent to the stored email address at the click of a button.
• Optional sales statistics (e.g., monthly).

One to three software workstations are planned. Work is carried out in an MS Windows system environment.