id: 1 | event_name: Rock Concert 2026 | seat: A1 | purchased_by: system
id: 2 | event_name: Rock Concert 2026 | seat: A2 | purchased_by: system
id: 3 | event_name: Rock Concert 2026 | seat: A3 | purchased_by: system
id: 4 | event_name: Rock Concert 2026 | seat: B1 | purchased_by: system
id: 5 | event_name: Rock Concert 2026 | seat: B2 | purchased_by: system
id: 6 | event_name: Rock Concert 2026 | seat: B3 | purchased_by: system
id: 7 | event_name: Rock Concert 2026 | seat: C1 | purchased_by: system
id: 8 | event_name: Rock Concert 2026 | seat: C2 | purchased_by: system