I think you are correct about having your booking details and travel dates prepared in advance before calling an airline office, it can really save a lot of time. It is also a good idea to consult the airline’s official website for the most current information first, especially for flight changes or baggage guidelines or contact information, since these can change.
If you’ve gone on an international trip, I’d also have your passport and booking reference ready when you call. It generally saves time for the call agent to be able to identify the issue and provide the correct solution.
