The chat bot implementation from the examples is stored in a cloud storage for which you don't have access. However, I have attached a project with a sample implementation of the Travel assistance bot.
The following blog post may be useful for getting better understanding how how to create chat bots: https://www.telerik.com/blogs/creating-an-azure-chatbot-using-microsoft-bot-framework-and-the-directline-channel
I hope this information helps. If you have any additional questions, please let me know.
Progress TelerikRadChat for Winforms