Originally Posted by missnikki:
I think that if your signed contract states a starting date, and she called to change it, you can be bold and charge her the rate she should have been paying, but in the interest of good business, you should contact her and offer her to come re-sign a new contract with new starting dates, and offer to hold the spot at half price. Like other posters have said, she is stringing you along and you shouldn't have to foot the bill for her indecisiveness.
I agree with this, and this is probably what I'd do also. Offer to re-sign contract, and charge her 1/2 price weekly until she starts.