"People are working harder and longer. We are dealing with a whole lot of new bookings and dealing with a number of inquiries from those who aren't just travelling to China but are worried about the coronavirus."
Travel agents had experience and expertise to do this, but it was more difficult for travellers who had booked themselves through websites.
"It's not just about airfares, it's about he knock-on impact — hotels, car rentals and sightseeing. If you're trying to rearrange that yourself, which one do you get to first?"
Thomas said events which severely disrupted travel made a "positive out of a negative" for agents.
They also could advise travellers on insurance, he said.
"With insurance, we have the expertise to know what the policies are, but people who have done it from scratch don't know what they are — it makes it tricky."
Thomas, who also heads the Travel Agents' Association of NZ (Taanz), said travellers needed to be insured for all events.
"Most insurance policies won't cover you for coronavirus because it is a known event, but the strong message is that if you're travelling, take out insurance because more can go wrong than catching coronavirus."
He had some general advice. "The key message — it has to be the customer's choice. They should be informed by what the Ministry of Foreign Affairs is saying on the Safe Travel website. At the end of the day they are the experts."