Someone mentioned and reminded me earlier of the distill.io monitoring service. I wanted to put in another mention for new folks. Its a service, which is also available as a Chrome plugin that can monitor all or parts of a page. When it notices a change it can email or send a push notification when there is a change.
I set it up to monitor the reservation page and check every 30m. When it sees a change it sends me a simple email highlighting the differences between changes.
They have free and paid versions. The free version will cap at a handful of emails a month, which is more than enough. If you have an extra computer you can let it monitor for you. If you don't just load the chrome plugin and it will do its thing in the background.
No more reload anxiety!