Selecting multiple time slots

Hi all, 

I was wondering if my clients can choose and book multiple appointments when selecting a time slot. Or perhaps automatically book recurring events with termination by date or number of appointments. 

I am selling 8/10/12-session packages and It is very tedious for clients to book 8/10/12 appointments by themselves one by one. Alternatively, I am creating recurring appointments for each of my clients but this is very time consuming to repeat this for every single clients. 

Any suggestions? Thanks a bunch 😄