如何用JavaScript高效筛选和合并聊天记录中特定问题的全部回复？

const chatHistory = [
    {
        "content": "你好\n",
        "role": "user"
    },
    {
        "role": "assistant",
        "content": "你好！很高兴为你服务。有什么问题或需要帮助吗？请随时告诉我。",
        "flag": "2"
    },
    {
        "role": "assistant",
        "content": "你好，很高兴见到你！我是ai优化助手，有什么可以帮助你的吗？\n\n如果你需要优化你的ai提示词，请告诉我你当前面临的具体问题或需求，我会尽力为你提供帮助。",
        "flag": "3"
    },
    {
        "role": "assistant",
        "content": "很高兴为您服务！如果您有任何问题或需要帮助，请随时告诉我。。",
        "flag": "4"
    },
    {
        "role": "assistant",
        "content": "你好！很高兴为你服务。有什么我可以帮助你的吗？",
        "flag": "1"
    },
    {
        "content": "你是谁\n",
        "role": "user"
    },
    {
        "role": "assistant",
        "content": "我是",
        "flag": "2"
    },
    {
        "role": "assistant",
        "content": "你好，我是你的ai优化助手。",
        "flag": "3"
    },
    {
        "role": "assistant",
        "content": "我是您的人工智能优化助手，专门致力于帮助用户优化与ai大模型的交互体验。",
        "flag": "4"
    },
    {
        "role": "assistant",
        "content": "作为一个认知智能模型，我的目标是为您提供有关各种主题的有用信息和建议",
        "flag": "1"
    }
];

const question = {
    "name": "question",
    "text": "你好\n"
};

function lookupChatByQuestion(question, chatHistory) {
    const responses = [];
    let foundQuestion = false;
    for (const entry of chatHistory) {
        if (entry.role === "user" && entry.content === question.text) {
            foundQuestion = true;
            continue; // Skip the question itself
        }
        if (foundQuestion && entry.role === "assistant") {
            responses.push(entry.content);
        } else if (entry.role === "user") {
            foundQuestion = false; // Reset if a new question is found
        }
    }
    return responses;
}

const answers = lookupChatByQuestion(question, chatHistory);
console.log(answers);