I am confused as to which accounts to debit and credit.
A guest became ill and was unable to stay for the entire week. A refund was issued in the amount of $1,000.

You would make a reversing entry for the 1000.00 to the original accounts you posted the transaction to.

I do not know your chart of accounts or where you posted the original transaction, however, it needs to go in the same place.

For example if the original transaction was posted to Debit cash and credit room rent, than the 1000.00 would credit cash and debit room rent.

Shirley

I am confused as to which accounts to debit and credit.
A guest became ill and was unable to stay for the entire week. A refund was issued in the amount of $1,000.
You will need to credit them