tôi đã nhận thông tin về chuyến bay delay của bạn thông qua email của tôi nhưng cái tôi cần là xác nhận từ hãng để có evident thuận tiện cho việc claim chi phí sau này.
I received information about your flight delay through my email, but what I need is confirmation from the airline to have convenient evidence to claim expenses later.
I received information about your flight delay via email, but what I need is confirmation from the airline to provide convenient evidence for future expense claims.
I have received your information about the delayed flight by email, but what I need is the confirmation of the airline so that I can claim for compensation later.