When You Request a Special Meal…
I know this may be hard to comprehend, but a plane is a finite area! Your crew can’t pull a vegan, gluten-free, non-lactose meal out of thin air for you if you didn’t pre-order it. Oh, and if you know you are allergic to nuts and have an intolerance to dairy (or 90% of other foods) you can bring your own packed lunch with you instead of complaining that your highly specific meal is not available for you.