In my opinion you have a bigger conflict with sh404sef plugin - I've purged URLs and now the reservation page shows a proper layout, but also it shows a module which wasn't there earlier - please review your settings and configuration of this 3rd party component - it seems that it has big problems with custom template overrides or needs some additional configuration to work with it - it is beyond of our technical support to deeper analyze this issue as it is not a bug inside our template.