Attempt Number: 2
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
Passenger p3 is ready to board fast1 on floor 4 and needs to go to floor 0. Boarding p3 on fast1 allows moving p3 closer toward their destination, minimizing idle time for the elevator and optimizing movement.

New State Description:
- fast0: Fast elevator at floor 3 (n3), 0/2 passengers, empty.- fast1: Fast elevator at floor 4 (n4), 1/2 passengers, contains p3.- slow0-0: Slow elevator at floor 1 (n1), 0/1 passengers, empty.- slow1-0: Slow elevator at floor 3 (n3), 0/1 passengers, empty.- p0: On floor 1 (n1).- p1: On floor 3 (n3).- p2: On floor 2 (n2).- p3: On board fast1 at floor 4, heading towards floor 0.- p4: On floor 1 (n1).- p5: On floor 2 (n2).

Action Chosen:
board(p3, fast1, n4, 0, 1)
