What can I do for you(= how can I help you)?有什么事我可以为你效劳?
What can I do for you?Can I help you?有什么我可以帮你的吗?
RESERVATION DESK.CAN I HELP YOU?OR WHAT CAN I DO FOR YOU?这儿是预定处,有何吩咐?
Good morning/Good afternoon,Sir/Madam,what can I help you?早上好/下午好,先生/女士.请问您需要点什么?
只有这些了,我也无能为力了,