Insert order button is disabled in new reservation window(before entering details)

SystemUtil.Run "C:\Program Files (x86)\HP\QuickTest Professional\samples\flight\app\flight4a"
Dialog("Login").WinEdit("Agent Name:").Set "sabeer"
Dialog("Login").WinEdit("Agent Name:").Type  micTab
Dialog("Login").WinEdit("Password:").SetSecure "5107a381819e3917c63eb17a0db4ee8c819deb26"
Dialog("Login").WinEdit("Password:").Type  micReturn
Window("Flight Reservation").WinButton("Button").Click
Window("Flight Reservation").WinButton("Insert Order").Check CheckPoint("Insert Order")
Window("Flight Reservation").Close