Navigate to Calendars, then click on Calendar Settings.
From here, you can either:
Create a new calendar, or
Edit an existing one
Under the Staff & Location section, make sure the same user is assigned to each calendar.
To set the availability for each calendar, Go to the Availability tab, then click on Booking Availability.
Customize the Schedule
Click Edit
Select Customize schedule for this calendar only
Define the specific days and times for this calendar, then click Save.
Repeat the same steps for your other calendars.
Test your booking link just to make sure everything looks correct.