http://www.aircanada.com/en/news/160606.html

June 6, 2016

Air Canada is proud to introduce multilingual call centre support for customers who would like to communicate with us in Spanish, Cantonese or Mandarin.

The multilingual service is available daily when you call Air Canada Reservations at our toll free and regular phone numbers, as follows:
•Spanish: 6 am to 2 am (ET)
•Cantonese and Mandarin: 6 am to midnight (ET)

And, of course, our call centre agents remain available to assist you in English and French around the clock, 7 days a week.