Recently I have learned about the one truly amazing cheap flight finding service,
matrix.itasoftware.com. But it's not a travel agent, it's only a search engine.
So this site gives you the full and precise details of the flight that you must quote to a travel agent and in theory the agent should be able to book you a ticket on that specific flight and get very close to the price the site quoted.
I am assuming there are other ways besides this flight search engine to find specific flight details where you can't necessarily buy the tickets, so my question is:
When I have details of a specific flight I want to book at a quoted price, but I don't have access to a physical travel agency, is there somewhere I can book that flight online? (Especially when I'm in a strange foreign country on the other side of the world?)