How can you cancel requests in an appointment widget

Hi,

I'm building a form where people can sign up for appointments. I'm using the appointment widget and it's working great. I have one question however. How can you cancel an appointment in a way that would return the appointment to its original status? For example, if you have one (or more appointments available on Monday, when someone selects an appointment, the counter will change and/or it may change to "not available" how can this appointment be canceled and opened up again? is there another feature or widget to use for this? 

please help! thank you,

Eva

You need to edit the widget and increase the number in the option. For example, if you have 1, change it to 2. If it's already selected, the option will still appear as 1.