Dear Mr/Ms,
Thank you for your letter of September 26.We shall be very pleased to see you and discuss your new monitor, but October 6 is not suitable. We will be happy to meet with you at 9:30 a.m. on Wednesday, October 7, if the time is convenient for you.
We look forward to meeting you.
Yours faithfully
参考译文：
尊敬的先生/小姐
我们将很高兴与您会面并与您商谈新的显示器，但10月6日不太合适。如方便的话，我们愿在10月7日与您会面。
期待与您见面。