Dear customer
It is our false to delay again although with your understood. And we should think about keeping the quality as same as the on time delivery, which we must improve.
As what you said, we are sure the first shipment will be on board on 27th April, the detial of this shipment as follow:
xxxx
And the rest we will make ready on board on 4th May.
Thank you agian.
Best Regards
加上【】里的那句话吧,先表达一下感情也是合理的.而且客人对质量还是很满意的,看上去他只是很无奈,但是还不至于生气.所以,这边只要承诺按照约定的时间出货,对方应该就不会很生气.