First, you have to select the platform the ticket was created in. If it was a Financial Aid ticket, choose the Financial Aid tab. If it was in the General Form, choose the BYUI Tickets tab, and so on.
Once you select the correct tab, you need to select the "Tickets" option on the left hand side of the screen.
Then, click on the green funnel icon in the upper right corner.
A list with filtering options will come up. Scroll down to the section that says "Dates/Updates" and, in the "Creator" section, type in the name of the person who created the ticket you are looking for. You can also filer it by the date it was created as well.
Scroll to the top and click the green "Apply" button.
All the tickets created by the person you put in the "Creator" box in that platform will show up. Now you can look through the tickets to find the specific one you need.