What does canceled services 2sr 24 hours mean?

What does canceled services 2sr 24 hours mean?

The 24-hour rule is an informal name for a United States Department of Transportation (USDOT) regulation that ensures that a customer who books a non-refundable ticket at least seven days ahead of the scheduled departure direct from the airline on a flight going to or from the US can cancel or change that ticket free … Feb 28, 2020

See also  Do cruise ships have a doctor on board?