"DoorDash is expanding its use of artificial intelligence from an in-app assistant into a transactional agent that can handle food orders through messaging. The company announced that customers in the U.S. can join a waitlist for a new text-based ordering experience. Instead of opening the DoorDash application and navigating menus, users can send a message describing what they want. The system can interpret requests, search DoorDash's marketplace, build a cart and complete checkout within the messaging experience."