The InputBox method displays a prompt in a dialog box, waits for the user to enter text or click a button, and returns a string containing the contents of the text box.
InputBox(prompt, [title], [default])
Required. String displayed as the message in the dialog box.
Optional. String displayed in the title bar of the dialog box.
Optional. String expression displayed in the text box as the default response if no other input is provided. If you omit default, the text box is empty.
If the user clicks OK or presses ENTER, the InputBox method returns whatever is in the text box. If the user clicks Cancel, the method returns a zero-length string ("").