Email I received.
"American has temporarily changed a number of policies in response to COVID-19. These changes include a relaxed seating policy, reduced food and beverage service, and suspension of checked pets.
Register We've relaxed our seating policy to enable customers to practice social distancing on board whenever possible.*

Airplane For the safety of our customers and flight attendants, we're temporarily suspending food and beverage service on flights under 2,200 miles (typically less than 4½ hours). Limited beverages will be available upon request. On flights over 2,200 miles (typically longer than 4½ hours), we will continue to offer a streamlined food and beverage service.

Register Because schedule changes increase the risk of leaving a pet stranded, all checked pet service will be suspended beginning March 25. Carry-on pets and emotional service animals are still allowed.
All details regarding these temporary modifications can be found on aa.com. We appreciate your trust in us in these uncertain times, and we'll continue working to keep you safe."