Originally Posted by
fumitani
I built up an ex Japan and ex USA ex UK itinerary, but it gives me this error..
'Sorry, there was an error. The booking engine could not be contacted: Input string was not in a correct format.'
I'm not sure I understand an itinerary that is "ex Japan and ex USA ex UK" but I assume you mean you are starting in Japan and traveling via the US and the UK?
Ticketing is (usually) done by the marketing carrier of the first flight so the "booking engine" it is trying to contact will vary depending on which airline that is. All I can suggest is that you clarify your question and/or try again.