Hěnbàoqiàn ɡěi nín dàilái búbiàn.
很抱歉给您带来不便。
We're very sorry for the inconvenience.
Notes:
很(hěn): very
抱歉(bàoqiàn): be sorry
给(ɡěi): to
您(nín): you(a respectful form)
带来(dàilái): to bring
不便(búbiàn): inconvenience
Example:
A: 很抱歉给您带来不便。
Hěnbàoqiàn ɡěi nín dàilái búbiàn.
We're very sorry for the inconvenience.
B: 没关系。
Méi ɡuānxi.
It doesn't matter.