Attempt Number: 3
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
To move closer to the goal state, we should focus on passengers and elevators that are not yet where they need to be. Passenger p0 needs to get to floor 0, and since they are on floor 1, we can easily move fast1, currently on floor 1, down to floor 0 to drop p0 off directly.

New State Description:
- fast0: Fast elevator at floor 3 (n3), 0/2 passengers, empty.- fast1: Fast elevator at floor 1 (n1), 1/2 passengers, currently holding p0.- 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: Onboard fast1 on floor 1 (n1).- p1: On floor 3 (n3).- p2: On floor 2 (n2).- p3: On floor 0 (n0).- p4: On floor 3 (n3).- p5: On floor 2 (n2).

Action Chosen:
board(p0, fast0, n1, 0, 1)
