We recently launched Phase 1 of our own fully integrated reservation manager and online booking system to a select few customers that would like to take part in Beta testing. For further information on our reservation manager and booking system and how to gain beta access follow this link: https://promotemyplace.zendesk.com/hc/en-us/articles/115001245532
Alternatively, we've created our templates to allow for easy integration with 3rd party booking software in a number of ways.
Our recommended 3rd party booking software providers are:
Instructions on how to add 3rd party software to your website can be found here: https://promotemyplace.zendesk.com/hc/en-us/articles/216229703