You can schedule a meeting as type reservation, if the date and frequency of the meeting are known at the time when you schedule the meeting.
For example, if you wish to run the meeting at 9am of every Monday for 4 consecutive weeks. And same participants are to be invited for the meeting.
1) Select the vMeeting type to be Reservation and start time 9:00.
2) Then click on the Recurrence button, the recurrence option page is displayed.
3) Set Frequency to be Weekly, check Monday and 4 Occurrences.
For more details, see how to schedule a recurring meeting.
You can also schedule a meeting as type reservationless, if the date and frequency of the meeting are unknown at the time when you schedule the meeting. Once the reservationless meeting is scheduled, you and the invited participants can start and attend the meeting at anytime and as often as you wish to. This meeting option is suitable if you only know the duration of the meeting.