This document summarizes the process for creating a chatbot using DialogFlow. It discusses setting up an account, creating agents and intents, adding entities and parameters, setting up fulfillment through webhooks, and enabling integrations. The presentation provides examples of building a banking chatbot called JollofBank that can handle intents like account opening, funds transfer, transactions, and airtime recharge through fulfillment code.

1. Everistus Olumese, RedPages
@eolumese
SW
Building an A.I. Powered
Chat Bot with Google
DialogFlow

2. A little about
Me
Lagos

3. • Integration Engineer for RedPages
Consulting and ICT Services
• Full-Stack JavaScript (Node.js,
Vue.js and React.js)
• PHP/Laravel Developer
• Interned at Hotels.ng
• A product of the ALC program

4. Agenda
1 . A Little Background
2. Account Creation
3. Agent
4. Intents
5. Entities
6. Parameters
7. Fulfilment
8. Integrations
9. Q&A
Location

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A Little Background
How many of you are married?
How many of you are in a relationship
that is not “complicated”?
What three apps do you use most often
on your phones?

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“By 2020, the average person will have more
conversations with bots than with their
spouse.” — Gartner

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Current Bot Use Cases
• bring to life car user manuals for
consumers
• Insurance Assessments
• Banking
• Smarter Cities (IoT)
• Filing taxes
• Human resources
• Customer support
• Airline
• a lots more

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What You can Use a Chatbot for
You need to order for food?
Use a chatbot
You need to switch off your light...
Use a chatbot
You need to transfer money...
Use a chatbot
Your house is on fire...
Call the fire service!!!

10. End
Process for Creating a DialogFlow Chatbot

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Account Creation
Visit dialogflow.com and create a new
account
Location

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Agents
An Agent is a chatbot application
a particular use case. It is a collection of
intents.
Prebuilt agents are
also available.

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Agents

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Intents
A query and response pair with other powerful
details like annotated entities, actions, values,
etc
Training Phrases
 I need a bank account
 I want a bank account
 I need a savings account
 How do I open a current account
 How do I open a checking account

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Entities
These are human described variables or
enumeration that you need, to customise the
experience for each user. There are system
entities and custom entities
Account type
email
bvn
firstname
lastname

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Parameters
When you define your parameters, you use
the built in entities or your custom entities
Required or optional
Customise your prompts

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Fulfilment
Webhook/Webservice hosted in firebase or
your own server
Dialogflow agent call business logic on an
intent-by-intent basis
generate dynamic responses or trigger
actions on your back-end

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Fulfilment
Use any language you want as long as it is
capable of supporting RESTful APIs
create one POST route
- in node.js
npm install dialogflow-fulfillment

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30. //app.js
let express = require('express');
const PORT = process.env.PORT || 8000;
let app = express();
app.use(express.json());
app.listen(PORT, () => {
console.log("Bot server up at PORT: ", PORT)
})
app.use(express.urlencoded({ extended: false }));
let JollofBankController = require('./controllers/jollofbank');
app.post('/jollofbank', JollofBankController.banking)

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/jollofbank.js
module.exports = {
banking: (req, res) => {
const agent = new WebhookClient({ request: req, response: res });
console.log(agent.intent);
let intentMap = new Map(); // Map functions to Dialogflow intent names
intentMap.set('Account Opening', openAccount);
intentMap.set('Transfer', transferFunds);
intentMap.set('Transactions', miniStatement);
intentMap.set('Airtime', rechargePhone);
agent.handleRequest(intentMap);
}

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et JollofBankController = require('./controllers/jollofbank');
app.post('/jollofbank', JollofBankController.banking)
banking: (req, res) => {

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//jolloffbank.js
const Account = require('../models/Account');
const AccountBalance = require('../models/AccountBalance');
const {WebhookClient} = require('dialogflow-fulfillment')
function openAccount(agent) {
return new Promise((resolve, reject)=>{
let accountNumber = "044" + Math.floor(1000000 + Math.random() *
9000000);
if (accountNumber.length > 10) {
accountNumber = accountNumber.substr(0, 10);
}
let data = {};

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data.userId = uuidv4();
data.accountType = agent.parameters.accountType
data.email = agent.parameters.email
data.bvn = agent.parameters.bvn
data.name = agent.parameters.name
data.accountNumber = accountNumber;
Account.create(data).then(account => {
let accountNumber = account.accountNumber;
agent.add(`Your account have been opened successfully. Your
account Number is ${accountNumber}`)
resolve(agent)
})
})
}

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Integration
You can enable one click integration for
many channels
Google Assistant
web
slack
twitter
FB messenger
Twillo

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https://goo.gl/dQR22a

39. Everistus Olumese, RedPages
C onsulting and IC T Services
@eolumese
Location
Thank you!

40. Q&A
Find docs here
https://dialogflow.com/docs
https://github.com/bytenaija/
jollofbank
Location