How can I limit the number times a date can be selected?

I am creating a form where people can choose a date to host an event. All the possible dates will be listed in the form, but I do not want to allow multiple people to choose the same day. Is there a way to eliminate a choice from the form once someone chooses it?

You may use the date reservation widget, a date gets disabled as soon as it's selected, here is the link: https://widgets.jotform.com/widget/date_reservation 

Alternatively, you may use any of the following widgets: 

https://widgets.jotform.com/widget/quantity_gift_registry

https://widgets.jotform.com/widget/gift_registry 

Where you can list the dates. 

This guide will help you adding the widgets to your form: https://www.jotform.com/help/252-How-to-Add-a-Widget-to-Your-Form 

I hope this helps.