Dear Sir or Madam,As a regular passenger of your train, I am completely disappointed to find that the service you provide is far from satisfactory.Therefore, I am writing this letter to draw your attention to the matter in the hope that the present situation will be much improved.As we all know, punctuality is essential to the railway service.However, the train is delayed from time to time, which brings me much trouble and inconveniences.Worst of all is the bad manners of your stewards and stewardesses.From their services, we cannot understand the saying, "The customers are the gods."I believe you will take this matter into serious consideration and give a satisfactory reply as soon as possible.At the same time, I sincerely hope that you will review your management system.I would be glad to see improvements in your railway service.Yours Faithfully, Li Ming