Error in QTP Running

[shubheksh]

i have installed QTP recently in my laptop...
But when i do a normal recording giving username & password to the flight application & run that in QTP
it gives an error----
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The test run cannot continue due to an unrecoverable error.

Cannot find the "Agent Name:" object's parent "Login" (class Dialog). Verify that parent properties match an object currently displayed in your application.

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The VBScript is

Code:

Dialog("Login").WinEdit("Agent Name:").Set "sdcsd"
Dialog("Login").WinEdit("Password:").SetSecure "4cc59a43f5e7291fde2477a9fee42c8bb29016fb"
Dialog("Login").WinEdit("Password:").Type micReturn
Window("Flight Reservation").WinMenu("Menu").Select "File;Exit"

Can U help me out plss to resolve this error--