Please accept my sincere apology for the inconvenience that I caused you by adding the extra visiting without your permission.
I had no intention of intruding on your personal life. In China, arranging interesting leisure activities for visitors is a common way to show welcome. However, as your receptionist, I should have realized that you are inclined to regard your private time as an inviolable treasure and hate to be harassed by unplanned matters.
I’m really sorry that I didn’t check with you before making such incomsiderate arrangement .All I can say is that it won’t happen again.