Add time off
On Schedule → Availability, add the dates you are away. Nothing can be booked on them.
With a team
Time off belongs to a person. While one provider is away, their services are unavailable and everyone else keeps taking bookings.
Before you go
Check what is already booked in those dates and contact those customers — time off never cancels existing appointments. An announcement on your booking page is a good way to set expectations while you are away.