May 6 (Reuters) - The following are the top stories from selected Canadian newspapers. Reuters has not verified all these stories and does not vouch for their accuracy.

THE GLOBE AND MAIL

** Airbus AIR.PA is set to announce an order for as many as 150 A220 aircraft from budget carrier AirAsia AIRX.KL, one of the biggest ever orders for the Canadian-made airliner.

** Negotiations between Alberta and Ottawa over new oil pipeline are being stymied by disagreement over the speed at which the province must increase its carbon price to C$130 ($95.62) a tonne.

** Telus Digital, the wholly owned division of Telus Corp T.TO responsible for customer experience and call centres, has deployed artificial-intelligence technology that alters the accents of customer service agents.

NATIONAL POST

** The Competition Bureau is challenging Keyera Corp's KEY.TO proposed acquisition of natural gas assets in Alberta, saying the move could harm Canada's energy producers and increase costs across the supply chain.

($1 = 1.3595 Canadian dollars)