Drupal module for booking engine multi hotel

sorry for my english
I need to develop the form to the remote reservation to install its my site www.villaggihotelcalabria.com:
management sale by number of rooms (in case of more rooms contextual booking)
discounts management based on age of children
Management offers early booking
allotment management
and management of all the “rules” that the tourism sector requires (supplements, reductions, etc.)
it requires intuitive and effective graphic
we accept suggestions and demo

it also requires also support for installation and configuration of the module on site