He said the possible booking changes would not impact "lots and lots of people" and the airline would be talking with customers on a case-by-case basis.
The national carrier's new boss said it would deal with the revenue loss at a future stage, but receiving compensation from the Government was still a possibility.
"I'm very confident we will end up on the right side of the ledger for all concerned."
Foran said his discussions with the minister in charge of isolation facilities Megan Woods was that all airlines were following the same approach.
"I'm sure they are in discussions with them and they will come to the right solution".
He denied being pushed around by the Government and believed the airline was doing "exactly the right thing to do".
Foran took over the top job in February just as coronavirus started impacting travel. He had previously been the chief executive and president of US Walmart.
The company has already made 4000 redundancies in response to the impact of Covid19 on its business.
READ MORE:
• Covid 19 coronavirus: Hysterical scenes as passengers in Auckland taken off plane to quarantine
• Covid 19 coronavirus: Govt restricting seats on Air NZ flights for Kiwis returning home
• Confusion for stranded New Zealanders in Australia as no Air NZ flights appear available until the end of July
• Air New Zealand hanging tough on refunding tickets in spite of growing brand damage