American Airline Reservation - special fares tailored to your needs

As well as with all other types of travel reservation, you can book your tickets in several ways: directly with an airline, through a qualified travel agency, or through a travel website. Most airlines currently issue e-tickets by default; you pick up your physical boarding pass when checking in at the airport.
If you choose to book through a travel agent, you will receive an e-ticket confirmation once your transaction is complete. This means no more standing in long lines at the airport — the e-ticket allows you to check in quickly and easily. A travel agent will store your airline reservation information, keeping track of your travel history to inform you about special fares tailored to your needs.
You should thoroughly consider the location and time span between connecting flights, and make sure that you have enough time to get from one gate to another, especially if the first flight has a poor on-time arrival record, or if you are flying during a bad-weather season. Another good option is to ask for sitting in the front of the aircraft if you have a connecting flight.