导购口语:

Please relax. I will take care of it according to your request.
请放心，我将按照您的要求去办。
I assure you it will not happen again.
我保证此类事情不会再发生了。
We should be able to get this problem ironed out.
我们一定能把这个问题解决好。

语句解析:

Take care of处理，负责；get sth. Ironed out意为“将某事处理好，解决好”。

情景再现:

I'm sure everything will be all right again next time you come. Hope you'll come again.
相信下一次您再来时一切都会称心如意的。希望您再来。