Write an Acceptance letter and template(when the person is not required to work out their notice according to contract)
Your resignation from the position of (job title and department), effective from (date of effective resignation which should be confirmed with HR department or equivalent), is accepted.
Although your contract of employment provides that you should work until (date confirmed by HR department or equivalent), your employment will actually cease on (date of actual termination), and you will be paid in lieu of notice up to (contractual date of termination, or any other date that you might negotiate - sooner or later - with the resigning person).
(Insert specific instructions relating to leaving procedures, e.g., return of equipment, company car, completion of expenses, expenses float, final pay details, etc.)
I thank you for your efforts and contribution during your time with us. I wish you all the best for the future, and would be happy to provide a reference, if required.