Existing template to use?

Hi All,

I’m a complete newbie to Spreadsheet, and struggling to even get started on a scheduling task.
Basically, I want to schedule a student-instructor meeting that involves 2 instructors and 1 student per 30-minute meeting. The instructors’ availabilities vary on a daily basis. What’s the best template/form to use, so that once I collect everyone’s availabilities, it can show who’s available in the specific time slot?
i.e. at 10:30 am: all the names available would show up in the time slot…
Not sure if I make sense.
appreciate any advise.