Too Long; Didn't Read
A one-on-one meeting should always start with ‘how are you these days’ and ‘What’s on your mind’ can be a good starting hint to allow the employee to start, always. Avoid canceling “something came up” is not an excuse, it is not. Your employees cannot be at the bottom of your priority list as much as the short term impact from canceling your meeting with them seems lowest. In the long term, everyone will appreciate your commitment and commitment to your employees.