如何用JavaScript高效筛选对话数据并提取特定问题的全部回复？

const chatHistory = [
    { "content": "你好", "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", "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" };

function lookupChatByQuestion(question, chatHistory) {
  let replies = [];
  let foundQuestion = false;

  for (const message of chatHistory) {
    if (message.role === "user" && message.content === question.text) {
      foundQuestion = true;
    } else if (foundQuestion && message.role === "assistant") {
      replies.push(message.content);
    } else if (message.role === "user" && foundQuestion) {
      break; // 遇到下一个用户问题，停止收集回复
    }
  }
  return replies;
}

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