Final answer:
To leave agent contacts in the GUI for a confirmed vacation on Kelly's account, an inquiry code is needed, but the specific code depends on the software being used, and cannot be provided without more information.
Step-by-step explanation:
To leave your agent contacts for a confirmed vacation on Kelly's account in the GUI (Graphical User Interface), you would need to use a specific inquiry code to access her confirmation. This entails navigating through the software application where the vacation details are stored. It is likely that the system has a unique code or a set of steps that you must follow to insert or amend information on Kelly's account. However, without knowledge of the specific software or system being used, it is not possible to provide an exact inquiry code. You would typically find this information in the software's help section, user manual, or by contacting technical support.