A: Can I please have a rum and coke?
B: You are going to have to wait until we take off and are at a cruising altitude.
A: I hate flying though, and I really need something to take the edge off.
B: I'm sorry we don't serve anything until after take-off.
A: I can pay you in cash.
B: We don't take cash on the plane anymore.
A: So how can I pay?
B: When I come around after we take off, you can pay with a debit or credit card.
A: I only have cash.
B: See if someone will buy you a drink then.
A: Can I smoke a cigarette to relax in the meantime?
B: Smoking isn't allowed on flights.