def get_proper_headsign(stop_id: str, stop_name: str):
    """Get trip_headsign based on last stop_id and its stop_name"""
    if stop_id in ["503803", "503804"]:
        return "Zjazd do zajezdni Wola"
    elif stop_id == "103002":
        return "Zjazd do zajezdni Praga"
    elif stop_id == "324010":
        return "Zjazd do zajezdni Mokotów"
    elif stop_id in {"606107", "606108"}:
        return "Zjazd do zajezdni Żoliborz"
    elif stop_id.startswith("4202"):
        return "Lotnisko Chopina"
    else:
        return stop_name