Air Canada says about 130,000 customers a day could be affected by disruptions ahead of a potential weekend strike by flight attendants. Wesley Lesosky, the president of CUPE’s Air Canada Component, says he’s optimistic Air Canada will come back to the table and pursue positive dialogue, but it has been ‘waves of up and downs’ thus far. »»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS Connect with CBC News Online: For breaking news, video, audio and in-depth coverage: http:/