@Stephanie2354
Well...it depends on the reason for the cancellation for most Hosts. If it is a family issue or medical emergency:
Some will provide a refund for the days cancelled
Some will offer a discount on a future stay
Some will offer to refund them if the Host is able to rebook the dates
Some will NOT provide a refund, as the guest could have purchased travel insurance which would have covered them in most cases
In any event, a long term stay is difficult to rebook and involves a large sum. Short term stays don't involve the same amount of money. You could also offer the non-refundable option to guests, but we have found the guests will make up stuff in order to get Airbnb to refund them once they realize they can't cancel and get a refund.
I usually caution new Hosts to do everything they can to avoid a negative review. You have over 100 reviews, so a negative review can be absorbed.
You'll have to decide which options works best for you and how much risk you are willing to take.