You can set your maker account to show that you're temporarily unavailable if you'll be traveling or otherwise unable to take orders from customers. Just go to your account settings page and click the button by the green check mark in the "Available" section of the page.
When the indicator is green, your account is set as available and customers can contact you. When the indicator is white, your account has been set to unavailable and new customers will not be able to contact you. Don't worry, we never block customers with existing message threads or in-progress projects from contacting you, marking yourself unavailable just prevents new customers from starting new projects.
While your account is set to unavailable, profile and listing pages will carry a message indicating that you're not currently available to respond.