Airports
| id | name | location | IATA_Code | ICAO_Code | airport_services |
| 1 | New York JFK | Queens, New York | JFK | NYJF | Lost Property |
| 2 | Los Angeles LAX | Los Angeles, California | LAX | KLAX | Lost Property |
Services
| id | service_name |
| 1 | Lost Property |
| 2 | Customer Complaints |
ServiceOfferings
| id | airport_id | service_id | date |
| (→ Airports.id) | (→ Services.id) | |
| 1 | 1 | 1 | 2023-12-01 |
| 2 | 2 | 2 | 2023-12-01 |
| 3 | 1 | 1 | 2024-01-05 |
| 4 | 2 | 2 | 2024-01-06 |
CustomerComplaints
| complaint_id | airport_service_offering_id | customer_complaint |
| (→ ServiceOfferings.id) | |
| 1 | 1 | Delayed baggage claim |
| 2 | 2 | Unclean restrooms |
| 3 | 3 | Poor wifi connection |
| 4 | 4 | Lack of seating |