Javascript chatbot Watson对话服务超时

目前，我正在开发一些聊天机器人，我想知道如何通过超时之类的方式完成对话

示例一：

if(callback.error){
  data.output.text = "The server is offline now. Please try again later. Goodbye!";
  return res.json(data); //send the message
  exit(); //example (I did with sucess)
}

if(userInputText == false && data.context.time === 120){
  //time = seconds
  data.output.text = "Are you still there?";
   return res.json(data); //send the message
  exit(); //example if user did not type anything
}

//intent by user #goodBye
if(userSayGoodbye){    
  data.output.text = "Okay, goodbye!";
   return res.json(data); //send the message
  exit(); //EXAMPLE for exit the conversation if user say goodbye
}

示例二：

if(callback.error){
  data.output.text = "The server is offline now. Please try again later. Goodbye!";
  return res.json(data); //send the message
  exit(); //example (I did with sucess)
}

if(userInputText == false && data.context.time === 120){
  //time = seconds
  data.output.text = "Are you still there?";
   return res.json(data); //send the message
  exit(); //example if user did not type anything
}

//intent by user #goodBye
if(userSayGoodbye){    
  data.output.text = "Okay, goodbye!";
   return res.json(data); //send the message
  exit(); //EXAMPLE for exit the conversation if user say goodbye
}

示例三：

if(callback.error){
  data.output.text = "The server is offline now. Please try again later. Goodbye!";
  return res.json(data); //send the message
  exit(); //example (I did with sucess)
}

if(userInputText == false && data.context.time === 120){
  //time = seconds
  data.output.text = "Are you still there?";
   return res.json(data); //send the message
  exit(); //example if user did not type anything
}

//intent by user #goodBye
if(userSayGoodbye){    
  data.output.text = "Okay, goodbye!";
   return res.json(data); //send the message
  exit(); //EXAMPLE for exit the conversation if user say goodbye
}

在消息发送给用户后，对话将结束。 但是我需要找到一些方法来确保用户是否没有键入任何内容。我想用布尔值

true

或

false

在

userInputText

变量中保存它

基础：对话简单

如何解决这个问题

---

提前谢谢。

示例1您已经基本了解了。如果应用程序从对话服务返回错误，您只需显示一些预先编写的文本

对于超时，您的应用程序必须控制计时器。你们可以把它作为对话的上下文发送，并以这种方式回应，但我不知道你们为什么要这样做？我认为在你的应用程序中，你有一个计时器，如果没有响应，那么给他们发送一条主动消息“你还在吗？”或者类似的东西，但我不确定你为什么要根据时间结束这样的对话