Air Canada has suspended its plans to resume operations.

The organization initially announced on Sunday morning that its crews would be back on the job early that same afternoon, following a back-to-work order from the federal government.

By early Sunday afternoon, the organization had reversed course on the decision.

This comes as CUPE, the union representing over 10,000 flight attendants with the company, responded to the return to work plan by saying they remain on strike and are seeking a fair deal.

The airline released a statement on Sunday morning saying the Canadian Industrial Relations Board (CIRB) has directed the organization to resume airline operations by 2:00 p.m. EDT on Sunday.

The Federal Minister of Jobs and Families, Patty Hajdu, referred contract negotiations between the airline and CUPE, the union representing many of its flight attendants, to final binding arbitration on Saturday, ending a strike that had begun earlier that same day.

According to Air Canada, the strike caused the suspension of more than 700 flights.

The CIRB has also extended the term of Air Canada’s previous collective agreement to last until a new deal is signed.

No information has been released on the timeline for the arbitration process.

Because of the work stoppage, staff and aircraft are out of position, making it difficult to quickly resume operations.