Write a memo in about 50 words.（写一份50个单词左右的备忘录。）
You work for a large paper manufacturer as personnel director. One morning, an employee came into your office and asked for information about another employee who wanted to buy a sailboat from him. He wanted to know if the other employee could afford to pay for the sailboat and asked about the man's income. You told him that the information was confidential and refused to disclose it. This week, you received a memorandum from the same employee making the same request. Write to the man telling him once again that the information is confidential.