I am doing a tickets booking system, it requests in one page list all the tickets info includes from city, to city, price and followed a textbox to input the number of tickets want to book. and at the bottom of the page is a 'buy' button, when the customer click on the button, all the routes the customer choose will be added to the shopping cart simutanously.
I can do if just add one item to the shopping cart, but have a problem about more than one item simutanously.
Thank you for your help.