Dear Sarah,
I am so incredibly sorry, but I’m afraid I won’t be able to make it to dinner this Friday night. I was really looking forward to catching up, so I feel terrible about having to cancel on such short notice.
Unfortunately, my manager just informed me that I need to fly to our Manchester branch tomorrow for an urgent project audit. It’s completely unexpected, and I will be tied up in meetings from early morning until late evening for the next few days. I tried to see if I could postpone the trip, but given the deadlines involved, it is simply not possible for me to stay in town.
I feel awful about letting you down, but could we reschedule for sometime next week instead? I should be back by Wednesday evening, so perhaps we could grab a bite on Thursday or Friday night? Please let me know if either of those evenings works for you, and I promise to pick a restaurant that we have both been meaning to try.
So sorry again for the inconvenience.
Best wishes,
James