Hi,
I will suggest this Bot to be made in C#.
I am part of Microsoft and from past 1 year working in Microsoft Bot domain. I can handle your project from beginning phase to last phase i.e. requirement gathering, designing optimum architect, coding along with automated test, Azure deployment, Configuring over different channels along with Natural language Processing through LUIS.
In past, i have successfully delivered one of the Bot awarded through freelancer. You can verify the same under my review feedback.
If you find me suitable for this i can show you some of bot developed by me. Feel free to contact me for demo and then we can work on this.