如何在对话流中获取先前的意图

Question

我遇到了一个问题：

我已经创建了 4 个意向书Table，bookingDate、bookingTime 和人数统计intent.i 已经添加了使用输入和输出上下文的意向链接。

假设我现在处于第三个意图，即“预订时间”，当我对 google 家说“预订 A Table”时，它会直接跳转到第一个意图。

我需要不跳转到第一个意图的解决方案，但如果用户说除必需输入之外的任何内容，那么它将调用自定义回退意图并停留在该特定意图上。

请提供解决方案，不要将意图跳转到任何其他意图..

// welcome intent here
app.intent('DefaultWelcomeIntent', (conv) => {
  conv.ask('What would you like me to do for you?. Book a table or Check your calendar?');
});

// Booktable intent
app.intent('BookTable', (conv) => {
  conv.ask('Please provide a date?');
});

// bookingDate intent 
app.intent('bookingDate', (conv, params) => {
  var speech = new Speech();
  const currentDate = moment().format("YYYY-MM-DD");
  const bookingDate = moment(params.date).format("YYYY-MM-DD");
  const displayBookingDate = moment(bookingDate).format("DD MMM YYYY");
  let say = '';

  if (bookingDate && moment(bookingDate).isSameOrAfter(currentDate)) {
    speech.say(`OK, ${displayBookingDate}`)
    .pause('300ms')
    .say(`Please provide time?`);
    const speechOutput = speech.toObject();
    conv.ask(speechOutput.speech);
    conv.data.restaurantData.date = bookingDate;
  } else {
    say = `Please provide today's or upcoming date.`;
    conv.ask(say);
  }
});

// bookingTime intent
app.intent('bookingTime', (conv, params) => {
  var speech = new Speech();
  const currentDateTime = moment().format("YYYY-MM-DD HH:mm");
  const bookingDate = moment(conv.data.restaurantData.date).format("YYYY-MM-DD");
  const bookingTime = moment(params.time).format("HH:mm");
  const booking12HourTimeString = moment(bookingTime, ["HH:mm"]).format("hh:mm A");
  const concateDateTime = moment(bookingDate + " " + bookingTime).format('YYYY-MM-DD HH:mm');
  let say = '';

  if(moment(concateDateTime).isSameOrAfter(currentDateTime)) {
    speech.say(`OK, ${booking12HourTimeString}`)
    .pause('300ms')
    .say(`How many people?`);
    const speechOutput = speech.toObject();
    conv.ask(speechOutput.speech);
    conv.data.restaurantData.time = bookingTime;
  } else {
    say = `please provide a valid booking time.`;
    conv.ask(say);
  }
});

// people count intent
app.intent('peopleCount', (conv, params) => {
  let peopleCounts = parseInt(params.count);
  let restaurantName = 'Dominos pizza';
  let restaurantAddress = 'San Francisco, ca';
  let bookingDate = conv.data.restaurantData.date;
  let bookingTime = conv.data.restaurantData.time;
  const booking12HourTimeString = moment(bookingTime, ["HH:mm"]).format("hh:mm A");
  let bookingDisplayDate = moment(bookingDate).format("DD MMM YYYY");
  if (peopleCounts > 0) {
    conv.ask(`OK You would like to create a table for ${restaurantName} in ${restaurantAddress} on ${bookingDisplayDate} at ${booking12HourTimeString} for ${peopleCounts} people`);
  } else {
    conv.ask(`Please add people more than zero`);
  }
});

app.intent('customFallback', (conv, params) => {
  conv.ask(`I couldn't understand. Can you say that again?`);
});

Answer 1

您的用例不是很清楚，但根据我的理解，您真正需要的是 contexts 或 follow-up intents。使用这些你可以链接意图。

如果您仍想获取以前的意图名称，我认为您应该将其存储在缓存中以便获取。 dialogflow 中没有规定可以做到这一点。

Answer 2

根据我对你的问题的理解，这个问题非常模糊，可以借助上下文获得当前意图中先前意图的值。

如果这个答案还有任何不明确的地方，如果你提供一些例子会很有帮助。

Answer 3

您无法直接获取先前的意图名称，但您可以根据“conversationToken”识别意图，如下所示。

function getFeedbackFunc(agent){
...
let convTokens= request.body.originalDetectIntentRequest.payload.conversation.conversationTo
ken;
console log("Original Intent :"+convTokens);
...
}

我得到的输出为：["awaiting_feedback","customer_phone","awaiting_contact","customer_name","phonepair-no-followup "]

因此根据输出，原始意图与上下文“phonepair-no-followup”相关，您可以 select 相应地表达您的意图。

如果有帮助，请提供您的反馈。

如何在对话流中获取先前的意图

How to get previous intent in dialogflow

node.js

dialogflow-es