Hello
As per my understanding you are looking for an Drupal E-Commerce Expert to assist you on Module which provides the functionality for users to book the products on a specific date.
As a Drupal Expert,I have worked extensively on its E-commerce based Uber Cart Module as well as other Modules,Plugins,Functionality for customization,development & then implement it within an existing site.
I would like to tell you that I am working on Drupal Platform from last 7 years.I have worked on its different versions such as D5,D6,D7 & Now Latest D8.
I have worked extensively with Drupal,PHP,MySQL,HTML,CSS,Javascript,Ajax both in Linux & Windows Environment.
I am looking forward to discuss the job specifications with you so that after i will tell you approach as well as time,cost estimation accordingly.
Thanks & Regards
HS Virasat Solutions