Windows 10 Windows Central has a article on getting Cortana to do custom commands.

Article link: How to get Cortana to perform custom tasks on Windows 10

I've never used Cortana. What do you use it for? I guess I'm just too old school to "speak" to my computer lol. I have an Android phone and would feel like a tool speaking to my phone like it was a person. (Even though I do speak into it all the time to talk to people err...)

For getting info fast without having to open a browser first.
It can also track packages.