Booking time earliest 2 hours from now

Hello Dam,
what can I do that booking time earliest is possible 2 hours from now.
For example:
Working time of employee is from 8.00am - 4.00pm
Now it's 9.00am
If now a customer books a service it should be possible that starting not earlier than in two hours, also not before 11.00am.
What can I do that it works?
Best regard
Luzi

Hello,
is there no answer?
In "Verwalten Locations" (Manage Venues) --> "Telefonische Beratung" (I only have one venue) I have set "Disable Datumsangaben vor: 2 Hours from now" (see attachment) But it doesn't work.

Where is my problem?
Best regards luzi