If there's anything you need, don't hesitate to ask.
a polite phrase offering help in finding something or by providing something. (Often said by a host or by someone helping someone settle into something. See also If you don't see what you want, please ask (for it).) Mary: This looks very nice. I'll be quite comfortable here. Jane: If there's anything you need, don't hesitate to ask. "If there is anything you need, don't hesitate to ask," said the room clerk.