A chatbot, like all human customer support rep, wants knowledge about what you are promoting and merchandise with a view to reply to clients with the right data. What’s an environment friendly option to hook up your knowledge to a chat utility with out vital knowledge engineering? On this weblog, I’ll display how one can construct a Fb Messenger chatbot to assist customers discover trip leases utilizing CSV knowledge on Airbnb leases.
Companies Used
We’ll use the next companies to implement our chatbot:
Loading the Airbnb Information into Rockset
Airbnb knowledge is out there in CSV format for various cities and is split into itemizing, overview, and calendar knowledge. From the Rockset console, I uploaded these information for Amsterdam into three totally different collections (airbnb_listings, airbnb_reviews, and airbnb_calendar). You may as well add knowledge for different cities into these collections if wanted.
Alternatively, you might place your knowledge 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’ll be able to consult with and familiarize your self with the Node.js venture 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.publish('/webhook', (req, res) => {
let physique = req.physique;
if (physique.object === 'web page') {
physique.entry.forEach(operate(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
With a view to perceive consumer messages and questions, I’ve built-in Dialogflow (apiai) in my venture. Dialogflow lets you create intents and extract meanings out of phrases utilizing machine studying. To connect with Dialogflow out of your utility it’s worthwhile to use Shopper entry token to create the consumer object.
I created an intent rentalcity and educated it with a number of phrases to extract the requested metropolis and date for the rental and the variety of individuals within the occasion. Equally, I created a number of extra intents to reply follow-up requests utilizing contexts. The Dialogflow venture export is included within the recipes github repository.
Interacting with the Chatbot
We now have the bot arrange and a mechanism to know customers’ requests. All we’d like now’s a option to translate the requests into significant responses. Utilizing Rockset’s Node.js consumer, 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, title, value, 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.title, listings.property_type, listings.value
from listings, airbnb_calendar
the place airbnb_calendar.date = :date and airbnb_calendar.accessible = :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 best variety of opinions accessible 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 may request the most recent opinions for this itemizing by replying present opinions.
The SQL question to get the opinions 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 varieties in subsequent. This makes use of the offset SQL command to get the subsequent end result.
Abstract
We now have a data-driven chatbot that understands customers’ requests for trip leases and responds utilizing Airbnb itemizing and calendar knowledge! Its potential to supply prompt replies leveraging quick SQL queries on the Airbnb CSV knowledge additional enriches the shopper expertise. Plus it was comparatively simple to attach the chatbot to the underlying Airbnb knowledge set. Your complete strategy 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.
