There wasn't any real polite response in her voice though she was stuck, perhaps a little panicked for all Aslan knew and he would do his best to help her. To make the hole bigger his best bet would have been the entrance itself though given that was blocked he assumed the next best choice would be to dig her out from the top, he'd just have to be careful the closer he got to her head.
Navigating around to the stand in front of the currently headless figure, he'd begin his work, front paws clawing at the earth and scrapping the dirt away as he attempted to open up the top and sides of the hole. Quick and careful didn't exactly pair together too well at times though he paused after a while to see how he was doing. Perhaps the earth around would be thin enough for her to wriggle free now. "Can you move now?" He enquired "Or do I need to dig a little more?"