Sir, u had given in-depth knowledge information very❤️ nicely step-by-step,... Sir requesting can u come up with topic like front office n embarkation department duties video in details..we really appreciate it very much for your hardworking efforts.n awaiting for the same ❤️❤️❤️❤️❤️❤️❤️❤️❤️ Thanks for your support n precious valuables times 👍👍👍👍👍👍👍👍👍👍👍