Bus ticket booking Website required

I require a website designed that when users go to it there is one option to purchase a bus ticket . When selected it gives a list of times and where from then the user selects desired time and proceeds to payment. Design has to be simple and thought has to be given as to how a unique design can be used when the user prints the ticket, or a unique number is given and then emailed to the driver to check. Ability to have CMS so I can update the wordding on the main page and also change times and route descriptions on the booking end is needed. Paypal would be used for payments. I can upload a basic site plan if required. Thanks