Keep 15 minutes free after each call
Lena sets After event to 15 minutes. Bookers can no longer pick a time that starts within 15 minutes of a call ending, or ends within 15 minutes of the next one.
No bookings at the last minute
She raises Minimum notice from 2 to 4 hours. At 09:40, the first time anyone can book today is 14:00.
Two intro calls a day, at most
She turns on Limit booking frequency and sets 2 per day. Once a day holds two intro calls, the booking page treats it as full.
Clara sees only the times that fit
Thursday already has Martin and Pieter, so it's greyed out. On Friday, 10:30 and 11:30 are gone because they'd touch Reilly's 11:00 call and its buffer. Clara picks 12:00.
Two days with room to breathe
Clara's call lands half an hour after Reilly's, the 15 minutes after it stay free, and Thursday stops at two calls.

