Referring to your letter of 5 June, we very much regret that we are unable to make you an offer for the goods you demand. The reason is that the product you need has been out of stock. What’s more our manufacturers have declined orders because of shortage of raw materials.
　　We shall, however, file your inquiry and cable you our offers as soon as we have got supplies. 

　　我方收到贵公司６月５日来函，但非常遗憾，我方无法对贵方所需产品报盘。其原因是，此货品在我处已经脱销。而且，由于原料短缺，生产厂家已经拒绝了我方订单。
　　我方已将贵方询函备案，一经有货，我方将以电报报盘。