A chatbot, like every human customer support rep, wants information about your corporation and merchandise in an effort to reply to clients with the right data. What’s an environment friendly technique to hook up your information to a chat utility with out vital information engineering? On this weblog, I’ll exhibit how one can construct a Fb Messenger chatbot to assist customers discover trip leases utilizing CSV information on Airbnb leases.
Companies Used
We are going to use the next companies to implement our chatbot:
Loading the Airbnb Information into Rockset
Airbnb information is out there in CSV format for various cities and is split into itemizing, assessment, and calendar information. From the Rockset console, I uploaded these recordsdata for Amsterdam into three completely different collections (airbnb_listings, airbnb_reviews, and airbnb_calendar). You can even add information for different cities into these collections if wanted.
Alternatively, you could place your information in an Amazon S3 bucket and create a group that repeatedly syncs with the information you add to the bucket.
Writing the Fb Messenger Bot
Utilizing the messenger bot tutorial, I created a Fb web page and webhooks to obtain occasions from the chatbot. You possibly can seek advice from and familiarize your self with the Node.js challenge I created right here.
app.js creates a HTTP server utilizing Specific. The server handles GET requests to confirm webhooks and POST requests to reply to consumer messages.
// Accepts POST requests on the /webhook endpoint
app.submit('/webhook', (req, res) => {
let physique = req.physique;
if (physique.object === 'web page') {
physique.entry.forEach(perform(entry) {
let occasion = entry.messaging[0];
if (occasion.message && occasion.message.textual content) {
// deal with the message
handleMessage(occasion);
}
});
// Return a '200 OK' response
res.standing(200).ship('EVENT_RECEIVED');
} else {
// Return a '404 Not Discovered'
res.sendStatus(404);
}
});
handleMessage.js interacts with Dialogflow and queries Rockset to reply customers’ inquiries.
Utilizing Pure Language Processing with Dialogflow
So as to perceive consumer messages and questions, I’ve built-in Dialogflow (apiai) in my challenge. Dialogflow means that you can create intents and extract meanings out of phrases utilizing machine studying. To connect with Dialogflow out of your utility it’s good to use Shopper entry token to create the shopper object.
I created an intent rentalcity and skilled it with a number of phrases to extract the requested metropolis and date for the rental and the variety of individuals within the social gathering. Equally, I created a number of extra intents to reply follow-up requests utilizing contexts. The Dialogflow challenge export is included within the recipes github repository.
Interacting with the Chatbot
We have now the bot arrange and a mechanism to know customers’ requests. All we’d like now’s a technique to translate the requests into significant responses. Utilizing Rockset’s Node.js shopper, I’ll question the the collections created in step one.
Let’s begin interacting with the chatbot.
The intent to search out listings makes use of the next SQL question:
with listings as (
choose id, identify, worth, property_type
from airbnb_listings
the place decrease(airbnb_listings.metropolis) like :metropolis
and airbnb_listings.accommodates::int >= :quantity
order by airbnb_listings.number_of_reviews desc
)
choose listings.id, listings.identify, listings.property_type, listings.worth
from listings, airbnb_calendar
the place airbnb_calendar.date = :date and airbnb_calendar.obtainable = :avail
and airbnb_calendar.listing_id = listings.id
restrict 1
This SQL question makes use of two collections airbnb_listings and airbnb_calendar to extract the rental with the very best variety of critiques obtainable on the given date.
To get extra data for this itemizing, the consumer can reply with particulars.
To reply this we fetch the abstract from the gathering airbnb_listings for the listing_id returned within the earlier question.
choose abstract from airbnb_listings the place id = :listing_id
The consumer also can request the most recent critiques for this itemizing by replying present critiques.
The SQL question to get the critiques for this itemizing:
choose feedback, date
from airbnb_reviews
the place listing_id = :listing_id
order by date desc
restrict 3
To take a look at one other itemizing, the consumer sorts in subsequent. This makes use of the offset SQL command to get the following outcome.
Abstract
We now have a data-driven chatbot that understands customers’ requests for trip leases and responds utilizing Airbnb itemizing and calendar information! Its potential to offer prompt replies leveraging quick SQL queries on the Airbnb CSV information additional enriches the client expertise. Plus it was comparatively simple to attach the chatbot to the underlying Airbnb information set. All the technique of constructing the chatbot took me lower than a day, from loading the dataset into Rockset and writing the chatbot to organising interactions to reply with the related data.
