Market my bookings agency business to create more business!

I am a small holiday home bookings agent - handling the bookings/enquiries for all those holiday-home owners in Cornwall. I do not offer a marketing and bookings services. I also have a very simple website: www.seasprayhm.co.uk. However, I also work part time which leaves me very little time to concentrate on the marketing my busines. I am looking for someone who can help me "sell" my services to all those holiday-home owners in the UK. Thank you!