I am writing to say that I will not be able to meet you at the airport next Monday morning.
This morning my boss asked me to go to Shanghai on business tomorrow. It is something very important for our company and I will have to go. By the way, I will be back within 10 days. When you arrive, please take Bus No.345 and get off at the East Bus Station. The station is not far from my house and you will find my house easily. My mother is always at home. I told my mother that you would come already.
Looking forward to seeing you.
Dear Mr. Jefferson:
I am writing to thank you for your kindness and hospitality I enjoyed during my stay in your place.
It is very kind of you to invite me to spend my Christmas holiday in your palace last month. The room you arranged for me in your house was quiet, clean and comfortable. The food was very delicious. And visits to local scenic spots were really wonderful. They have not only broadened my horizon, but also enriched my experience. By the way, if it is convenient for you, please come over and spend your Spring Festival this year in my place.
Thank you very much again.