You need to join the three tables: passenger, departure and flights:

1. Select name_passenger and surname_passenger from the passenger table;
2. Select travel_time from the flights table;
3. Join the departure table and passenger table by the number_of_departure column. Join the departure table and flights table by flight_number column;
4. Make filtering: flight time (travel_time column) must be more than 10 hours.

Here's a short example of the departure table:

Here's a short example of the passenger table:

Here's a short example of the flights table: