"Sometimes you need to be able to change quickly to keep people happy and simple things like serving them something that's not on the menu can go a long way," Miss Hennessy said.
She said making things easier for the customer was often the best way to get them to come back to support your business.
Hospitality New Zealand chief executive Bruce Robertson said those in the industry were becoming increasingly aware of the influence of social media on their businesses.
"Social media is word of mouth on steroids and that's why we chose this year's theme.
"How do you deliver a top-quality product every time?"
Key note speaker yesterday was New Zealand First leader Winston Peters while Rotorua MP Todd McClay, the Associate Minister of Tourism, sat on a panel of experts to talk about the rising influence of Chinese tourism in New Zealand.
The conference concludes tonight with a black tie dinner and awards evening.