Google Apps Script to delete calendar meeting using subject line via email

Hi All, I currently have a website which accepts bookings via a Google Form and uses Zapier to connect the form responses to create the calendar event. The wordpress website displays the calendar using a plugin. I need a way to cancel the events. Either by sending an email with some details in subject line to remove the event or if the form can be utilised in a better way to have a list of the events on the website with the eventID and be able to click a link to remove from the calendar. the google calendar is un-manned so logging in to delete event is not really possible. Small budget quick payment Regards Ray