CFAR = Cancel For Any Reason coverages would include a work event that causes you to cancel /re-book your vacation. Generally, travel insurance providers will reimburse a % (usually 75%) of trip costs. You should cover only your trip costs that are lost due to cancellation. For example, rental cars are usually cancellable up to day of without losing money.
This review site compares travel insurances; See the coverage for CFAR:
http://travel-insurance-review.toptenreviews.com/
We selected #1 which has a Custom Luxe plan with this coverage:
http://www.csatravelprotection.com/plan-details
We have used it due to ageing parents risks of health crisis....