Planning an event can be a complicated process, but you have plenty of resources available to you to help out, whether you're representing a club, or are organizing something as an individual student!
If the Office of Student Affairs is paying for any food or supplies, make sure to send those orders to Jeanne. Make sure to provide an itemized document with links and quantities of what you'd like to purchase.
Aim to make any supplies purchases from Amazon or Michael's - the University is tax-exempt, and these businesses are compatible with this.