import time

# System setup: List of stations and their current demand
stations = ["A", "B", "C", "D", "E", "F"]
demand_board = {station: 0 for station in stations}

def display_dashboard():
    """Simulates the transit board displaying current demand."""
    print("\n--- Live Transit Intent Dashboard ---")
    for s in stations:
        print(f"Station {s}: {demand_board[s]} passengers waiting")
    print("-------------------------------------")

def user_press_button(station_name):
    """Simulates a passenger declaring their intent to board."""
    if station_name in demand_board:
        demand_board[station_name] += 1
        print(f"\n[System] Intent confirmed for Station {station_name}!")
        display_dashboard()
    else:
        print("Error: Station not found.")

# Demo the interaction
display_dashboard()
user_press_button("A")