Here is a video of how to set up your new fountain pen, for beginners. I have used a Pilot Kakuno in this demonstration but most fountain pens work similarly.
The Pilot Kakuno is such a great user friendly pen for beginners or seasoned users. I always have one with me.
To see how to install cartridges into your fountain pen and get them working see this post. How to install an ink cartridge in a Pilot MR fountain pen
To buy the Pilot Kakuno from this video go HERE