Our current guest is unhappy with our space, and wants to leave in the middle of her one-week reservation, and be refunded for the remaining days. All things considered, we'd be willing to issue the refund *if* we can rebook the space for the remaning days (and only for the amount we receive for the rebooking).
Is there a built-in-to-the-system way to do this? In other words, accept the reservation modification, but give the refund only if we subsequently rebook?
Or does one of us have to do it on faith -- i.e., either we accept the modification and refund, then try to seek her out privately to pay more if we don't rebook; or she modifies the dates without the refund, and trusts that we will pay her privately if we do rebook?