Your tour page meta title is auto-generated, however, if you want to override this with your own title for SEO purposes, that is possible.
Login to TourCMS > Tours > Description & Images > Custom Fields
In the field Custom Meta Title, enter your new meta title and save.
Clear your TourCMS cached data to see this appear on your website.
Please note, if this field does not exist in your TourCMS account, you can create it.
Login to TourCMS > System > Configuration & Setup > Extra Tour Content Fields > Create A New Tour Content Field
Name: Custom Meta Title
Type: Single text line
Save this, then follow the steps above
Side note - the meta description for your tour pages comes from the "Short Description" field in TourCMS, edit this field & the meta description will be updated automatically