1、非常抱歉，茲因購貨人已向我司撤消訂單，迫使我司只好向貴公司取消這一次訂貨。
To my deep regret, the buyer of these goods has just cancelled the order, a fact which compels me to cancel my order with you.

2、很抱歉由于我司在今后一段時(shí)間內(nèi)，所有貨物品已完全夠用，因此，不得不取消此次訂貨，敬請諒解。


Our requirements are now fully covered for some time to come, and we therefore greatly regret that we have to cancel our order with you.


3、非常遺憾地 通知 貴公司，因?yàn)橘徹浫藢F公司價(jià)格500元不予確認(rèn)，因此要求您取消此訂單。


We are sorry to report that our buyer does not confirm this order at your price $500; we must, therefore, ask you to cancel same.


4、非常遺憾，我公司不得不 通知 ，在此同一時(shí)期內(nèi)，需要取消數(shù)種訂單。


I regret that I have to notify you of so many orders being ceancelled at the same time.