Try this
- Name what the space normally provides: privacy, reading, work or a place to decompress.
- Choose an alternative location or time block, and tell the people affected by the temporary change.
A worked example
“The spare room will be occupied, so I’d like the living room quiet for half an hour after breakfast.”
An invented example to adapt, not a real exchange or a script you have to follow.
Before you leave it here
Do not assume the need disappears because the room is needed for guests. Revisit the arrangement if the alternative does not actually provide the privacy or quiet intended.