simple bus booking system

need a simple (for me ...) system so people can book online for bus services, on which i have to have a control screen giving details like * number seats * date / time / where * where to * ref to website with program * price * discount code * seats still available * uploadble picture as background people when booking get an invoice via paypal which, after paying, they can keep as receipt and ticket. also i need to know who booked per bus, and their email address maybe one or two extras, but that is about it.