导购口语:

This is quite unusual.please be assured that we will look into the matter.
这是很少见的。请您放心，我们一定会把这件事情查清楚。
We are trying to find the cause.could you wait a little longer,please?
我们正在查找原因，请您再等一会好吗？
We will look into it and back to you right away.
我们调查之后，会马上给您答复。