Please check http://prntscr.com/n682q8
Do you want to translate this section? Month section will be translated automatically based on language.
And to translate days, please find following code in /js/theme-scripts.js file and change string.
var daynames = new Array("sunday", "monday", "tuesday", "wednesday", "thursday", "friday", "saturday");
And travelo theme has not feature to translate confirmation email content.
You can edit it in theme options panel http://prntscr.com/n683ue