Often airlines have code share flights, all this information is clearly documented on the reservation that the airline maybe American but operated by Alaska. Baggage alerts are also displayed on our website. Virgin America does not have baggage agreements with other carriers, therefore you must claim your luggage, but it is posted on the website.
All information should be reviewed by the customer immediately, once the booking is completed and several days go by, all new charges for the new dates, or times have to be paid. I do apologize that when customers do not review the reservation when it is displayed on the website prior to "submitting", and the final result is an additional expense.
Also, we suggest you contact the airlines 24-48 hours prior to reconfirm your flights, this will only help if information is not clear, and will prevent delays at the airport.