Though luck. When I book a train in France, it shows a low price with a message "only 2 places at this price, book quickly". Happens that I want it, but someone else has found his credit card quicker.
I'd be tempted to answer, that for the very first booking, airbnb offered a lower price and you offer a chocolate on the pillow. You can't influence airbnb, but exceptionally, the second guest will get a bedtime sweet too.
And leave it at that.
When you set up a new listing, you attract all kind of people trying to profit from your lack of experience. That was the same beforr airbnb and will be the same as long as humans exist. Don't be bothered by it.
You profit from a 4 weeks boost in ranking. After that, your prices obtained define also who will see your listing. Don't go too low for no reason.