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general::
Phrase(s): 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.
McGrawhill's American Idioms And Phrasal Verbs