Dear Mary,
I hope you are safe and sound! I am writing this letter to you that I let you know I can not go yours. I have been looking forward to visiting Canada and spending time together. But I have had an urgent problem. My sister is leaving for Moscow due to her work, and I and her baby are going to fly too. She has already booked the tickets. I will look after her baby when she takes part in a meeting.
I am so sorry that I can not fly to Canada . I have been so exited about fabulous travel. However, we can meet after two weeks after returning from Moscow. If you do not mind, we will reschedule our arrangement. I feel that you will understand me.
I believe you are my best friend. I will be happy if you reply to my letter. See you soon!
Best wishes
Your Rano
