You can disable your stall/ booth booking request on the event page via Dashboard for all your events.
To do so, kindly follow the steps below:
Step 1: Login to your Dashboard Account and a page with all your events will be displayed.
Click on the desired event name.
Step 2: Go to Leads > Settings from the menu at the left panel
Step 3: It will show the screen below. Select "closed" from the drop down, in the field "Stall/ Booth Leads" and click on "Save" highlighted below, at the footer:
While your stall booking option is enabled/ opened, your event page will look like below, with "request a booth" option visible to visitors:
And, when you disable the option, the "Request a booth" option will disappear: