Dear Sir or Madam,
I am writing you this letter to make a complaint for my current unpleasant travel. My wife and I joined your travelling group to He Nan from Nov.11-15. During our journey, the tour kept pursuading us buying local specialties, which made us very uncomfortable. We know what we like and wish to make our own choice. Hope this will not happen to the other travellers.
Jack Smith
回復：
Dear Mr. Smith,
Your letter of complaint has been received. We pay high attention to your complaint and will make some investigation on what you have experienced. We will give you the feedback within three working days.
No matter what, it is our problem for not providing a satisfactory journey to you. We would like to express our deep apology.
Nora Wang
Manager of Customer Service
Wonderful Travel Agency
望采納，謝謝