很遗憾您不能接受我6、7月新的报价, 但我也可以理解。怎么翻译？

Though I am sorry that you can not accept the new quotation of June and July I proposed, I can totally understand that.

It's a pity you can't accept my new quotation in June-July, but I can understand

We regret and we can understand that our offer (quotation) in Jun and Jul were not satisfied by your side.

We regreted to learn that you could not accept our price of June and July, which I can understand.