In the current Tour and Packages module, the tours can be filtered base on duration, price, themes, and activities.
If you have any specific requirements that you want to be customized, please raise a ticket so that we can discuss it further: https://webkul.uvdesk.com/en/customer/create-ticket/
Also please check the workflow of Tour and Packages module from this blog : https://qloapps.com/qloapps-tours-and-packages/
All email in QloApps can be customized using the translation page in QloApps back office
Here is the detailed guide that can help you: https://qloapps.com/managing-translations-in-qloapps/