A dynamic car assignment method implemented by an elevator system is provided. The elevator system includes a plurality of elevators. The dynamic car assignment method includes an assignment, by the elevator system, of a first elevator car of the plurality of elevators to pick up a passenger in response to an elevator call. The elevator system then detects that the first elevator car is fully occupied prior to the first elevator car arriving to pick up the passenger. Further, the elevator system dynamically assigns a second elevator car of the plurality of elevator cars to pick up the passenger in response to the elevator call and in response to detecting that the first elevator car is fully occupied.