Special Event - Block Of Days

I want to set up a special event that is available for people to book grad cap & gown sessions during a few weeks in the spring. If I input it as a special event, I need to add each available day separately, which is very time consuming and allows a lot of room for error. If I add it as a regular event, it's available for way more time that I want. Is there a way to input this availability for a month or a couple weeks only?

Not a way to set a date range for a booking service. You would have to set the dates with a special event. 

I've made a note of it.