Michael Rousseau announced his retirement from Air Canada following public outrage over his failure to deliver bilingual condolences after a fatal crash.Prime Minister Mark Carney criticized the unilingual message as showing a lack of judgment and compassion for the victims and their families.The controversy follows the death of two pilots at LaGuardia Airport, which sparked a unanimous demand for the executive's resignation in Quebec.While the airline searches for a bilingual successor, the company expects to reach a profit of three billion Canadian dollars this fiscal year.