This letter informs the recipient of a required schedule change for their department due to fluctuating business volumes and the evolving needs of hotel guests and events. The recipient's average shift times are noted as starting at [time] and ending at [time], [days of week]. Effective [date], their new schedule will be starting at [time] and ending at [time], [days of week], with exact hours and days varying depending on department needs. Advance notice of [14/30] days is being provided out of respect for the recipient and to allow time to make any necessary adjustments to their work and personal schedules.