Why does anybody have to be calling her anything for certain? If one believes that they don't have enough information to determine with any significance whether she's more likely to be telling the truth or telling a mistaken account of events (whether intentionally or otherwise), it would be best to not take her words as more trustworthy than Airbnb's or vice versa. "I don't know" is a perfectly legitimate point of view and "wait and see" a perfectly legitimate action given that point of view.