I am trying to book a multi-city itinerary ut always run into problems: sometimes when selecting the flights, sometimes when I click next to complete booking I get the following error:
Please review the following items- An error has occurred in our central database. Please contact us for further information. (4002 - 10600)
- We could not find fare for the requested itinerary (5685 UI)
Is that normal and what should I do?