HMD Project

Domain

Pizza ordering bot

Available Actions

• Order pizza(s)
• Order drink(s)
• Checkout order
  • Specify delivery or takeaway
• Ask for price of pizza/drink
• Ask for ingredients in pizza
• Ask for menu
• Ask for pizza with/without ingredient
• Ask for pizzeria location
• Ask for timings of pizzeria
• Ask for help
• Modify placed order
  • Add pizza
  • Remove pizza
  • Add drink
  • Remove drink
  • Change time
  • Change name
  • Change delivery method
  • Delete order

Video Demo

Some examples of bot usage are available here.

Training the model

rasa train -c config.yml

A pretrained model using config.yml is also available in /models folder.

Running the bot locally

Open two terminals, on one type:

rasa run actions

to start the action server. In the other type:

rasa shell

to start the conversational agent.

Deploy on alexa

Open two terminals, on one type:

rasa run actions

to start the action server. In the other type:

rasa run -m models --endpoints endpoints.yml -p 5005 --credentials credentials.yml

to start the conversational agent.

Open ngrok and run

ngrok http 5005

It should give an https url, go to the alexa skill endpoint and copy the URL, appending the suffix "/webhooks/alexa_assistant/webhook"

To Alexa, say "Start Pizza Bot"

Dialogue Flowchart