Webhook呼叫失败。错误：无法解析Webhook JSON响应：找不到字段：消息google.cloud.dialogflow.v2.WebhookResponse中的消息

Question

我正在使用v2对话流。我想从Firebase检索数据，但履行状态显示错误。

use strict;
const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);
var firestore = admin.firestore();

exports.hotelbooking = functions.https.onRequest((request, response) =>
{
console.log("request.body.queryResult.parameters: ", request.body.queryResult.parameters);
let params = request.body.queryResult.parameters;
firestore.collection('orders').add(params).then( () => { response.send({                
speech: this is a response for ${ params.name } });
return true;}).catch((e => { console.log('Error getting documents', e);
response.send({ message:' Sorry, something has gone wrong. Try again and if the problem persists, please report it.' });
return true;    
}))
});

我希望输出是index.js的响应