How to create and host concurrent meetings using single JWT API keys on Enterprise Level Account

I have an zoom enterprise level account, I am working on a Financial Management System, I want to integrate zoom create Meeting API in our system.

In Our system, we have different users with different roles, and one user can send meeting invite to other users, and it’s quite possible that two users can schedule meeting on same date and time.

My Question is that How can I host concurrent meeting using single global JWT API keys? and I want to avoid creating the users on my zoom account, Is it possible to host concurrent meetings using create meeting API and without creating users on the zoom account using create user API.

What is the best possibility to host concurrent meetings on zoom by using zoom APIs