event_id,customer_id,held,occurred_at
H01,C2,true,2026-06-03T08:00:00Z
H02,C9,true,2026-06-03T08:00:00Z
H03,C9,false,2026-06-03T09:00:00Z
H04,C2,false,2026-06-03T12:01:00Z