Simple Chatbot using Deep Learning with nmt-chatbot.
Data was collected from WhatsApp personal chats. All the data used for this bot is personal data and was not obtained illegally. WhatsApp chats can be downloaded from the app itself, go to any chat, select Settings -> More -> Export chat.
It's quite a famous repository, link here. All the required deep learning algorithms were already written inside the repository. It just required two files trains.from and train.to.
Both these files had to be prepared from the collected data. Preprocessing code can be found here.