Hi,
Not sure I completely understand your question. However, if you need to talk airlines I'm more than happy to share my expertise with how they work, current trends, etc. etc.!
If you'd like practice in an Airlines case, feel free to try the one I created not too long ago on PrepLounge!
https://www.preplounge.com/en/management-consulting-cases/candidate-led-usual-style/intermediate/chinese-chess-airline-business-during-covid-19-191
