Amending the Host on an existing ticket

First add the Host in Guests > Overview if they don't already exist in your event (Adding guests to your event help article).
Go to All Pages > Tickets > Ticketing Overview
Click All Tickets
Search for the current table host or the guest with multiple tickets
Click the three dots “…” and then click Edit on the ticket line you want to amend the host for
Under Host type the new Host’s name and select them from the dropdown
Click Save

Editing the ticket:

Amending the Host field:

If you need to amend the Host of an existing ticket (the person who will manage the tickets/registration) simply follow these steps.