Air Canada said it remains available to continue negotiations with its flight attendants as it winds down operations ahead of a potential labor disruption.

The Montreal-based airline, which transports about 130,000 customers a day, said the union representing flight attendants made a recent counteroffer seeking “exorbitant” pay increases, and has rejected an offer to enter third-party binding arbitration.

Air Canada is preparing to indefinitely suspend most of its flights over the next three days after hitting an impasse in contract negotiations with its flight attendants' union. The union issued a notice of intention to strike,