Пример сценария Антону

rules = {
    "hello": (
        {"name": "1", "tokens": ("да", "Да"), "scenario": "question", "answer": "Вопрос: авп"},
        {"name": "2", "tokens": ("нет", "Нет"), "scenario": None, "answer": "Точно?"},
        {"name": "2", "tokens": ("__DEFAULT__",), "scenario": None, "answer": "НИПАНИМАЙ?"},
    ),
    "question": (
        {"name": "3", "tokens": ("да", "Да"), "scenario": None, "answer": "ХОРОШО"},
        {"name": "4", "tokens": ("нет", "Нет"), "scenario": None, "answer": "ПЛОХО"},
        {"name": "5", "tokens": ("не знаю", "Не знаю"), "scenario": None, "answer": "СРЕДНЕ"},
    )
}

cur_scenario = "hello"

print("Я могу задать вопрос?")


def handle_answer(answer):
    global cur_scenario
    for rule in rules[cur_scenario]:
        for token in rule['tokens']:
            if token == answer or token == "__DEFAULT__":
                if rule.get("answer") is not None:
                    print(rule.get("answer"))
                if rule.get("scenario") is not None:
                    cur_scenario = rule.get("scenario")
                return


while True:
    answer = input().strip()

    handle_answer(answer)