@Randall96 The Govt. Rate would be what their employer is willing to cover. Anything above and beyond that the guest would have to pay out of pocket.
The govt. rate is probably adequate and reasonable for the employee to book something for themselves. But if they want to book a 4 guest entire house listing like yours, possibly travelling with friends or family, or just because it appeals to them, they should expect that they are not going to get it for the same price as a private room listing or a Motel 6 room.
Stick to your posted rate.