Sign Up Form That Removes Selections Once It Has Been Chosen By Another User?

Hi, we are doing a sign up form for parents to bring in breakfast for the teachers.  Once a date has been chosen, we would like to remove it from the available dates.  Is this possible?

I suggest you use the Appointment Slots widget. This widget is perfect for showing your form users what times are available for an appointment. Here's a demo form: http://form.jotformpro.com/form/43352010062942.

Related widgets:
Ticket Purchase widget
Gift Registry widget
Quantity Gift Registry widget

Here's a guide on How-to-Add-a-Widget-to-your-Form.

Hope that helps. Thank you.