You can do this, but it doesn't work the way you would necessarily expect. In order to change the prompt, I believe you would need to add a custom prompt to the AA.aef script file that is currently running as your AA on CUE.
From the CUE Planning guide:
Cisco Unity Express's dial-by-name function matches the Last Name, and if not unique, the dial-by-name function proceeds to match the First Name field. This sequence cannot be changed or customized. If you want is to match the First Name, then the Last Name, the fields in the configuration must be reversed.
For example, Robert (first name) Lee (last name) works for the company. Figure 20 depicts that the dial-by-name matches Lee (the last name in the configuration), and then Robert (the first name in the configuration).
If you want to match "Robert" first, followed by "Lee" in the dial-by-name application, then configure "Robert" as the last name and "Lee" as the first name, as shown in Figure 20. This configuration has no side effects on the system as these fields are passive and are not used to control anything else (such as Caller ID, phone displays, or login names).
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.