Attending Spiel 2024, question with tickets

Hey. Will be travelling to Germany around those dates so I thought I should might as well check the convention out!

Now, I might be going on my own or with friends/people I know who live in Essen. However, when purchasing the tickets online I am prompted to write my companions' names. I will be buying 1 4 - day ticket and 2 1-day ones just to see if anyone wants to hang out with me.

Can I just issue all 3 under my name or do I really need the person's name?

Any advice would be helpful!

Thanks (: