Dear Prof. Smith,
How are you recently? Your last visit to our company provided a good opportunity for us to learn from an expert in computer science. Your speech rich in wisdom and vision was really impressive. Your suggestions about the development of software industry are constructive and we believe they will be helpful for the development of our company too. We express our heart-felt gratitude to you for your coming, sharing your time, knowledge and energy with us. And we are expecting another opportunity to entertain you better. You will be always welcomed here.
Best wishes for you and your family!
Dear Mr. Lin,
I have received your letter on May 16th, and thank you for your compliments. I was really flattered that you spoke so highly of me during my visit to your company. I am very happy to be of some help to you.
I enjoyed my trip very much and was impressed by your hospitality. And I want to thank you for your utmost cordiality. I am also looking forward to meeting you another time.
Dear Mr. Lin,
I am writing to acknowledge your letter on May 16th. It is really considerate of you to write to me after the visit. You and your company left me a very nice impression. I had never expected so young a manager who was energetic, humorous and intelligent. With your leadership, I believe your company will move towards a greater success. I felt happy I could contribute a little to the progress of your company.