It will be a blunder if you get more than one meeting scheduled at same time on same date. To overcome that, canUmeet has introduced conflict checking mechanism. Once you are connected to your Google Calendar, others can see only the time in which you are available and free for the event. In short if you enable this option, you can prevent double bookings. canUmeet strongly recommends you to check all the calendars available to prevent double bookings.
For instance, here we can see in first screenshot I have two events booked at Friday 1pm-2pm and 4pm-5pm.
Now when some individual is trying to book a time with me, in the time selection slot, these time wont be available for booking, bringing conflict checking into the scene. Please look into the below screenshot.