Drink service is likely the least of your concerns as I suspect whatever flights you are booked on over next few weeks will probably not operate. The last minute cancellations are clearly snow-balling now and would expect this to continue. DL cancelled 27% of flights Saturday, 28% today, and are already at 37% for tomorrow (this number has been rising all day). Seeing similar numbers for the other US carriers. At this point if conditions continue to deteriorate I would not be surprised to see one or more carriers suspend all flying until the lockdowns end.