Feature request for Microsoft Bookings - Set custom availability for a date range

Hi Microsoft. 

Please can you add a feature to Bookings that would allow staff to input their available hours in a calendar view? The closest equivalent is setting custom staff availability - however these slots recur weekly which isn't suitable for our staff.

We're running a service wherein a number of staff offer ad-hoc hours that we currently have to manually make available on our bookings service. This would be much simpler if staff could directly manage their hours.

Thanks so much!