"On a recent flight from Houston to Boston, we inaccurately scanned the boarding pass of Ms. Yamauchi's son. As a result, her son's seat appeared to be not checked in and staff released his seat to another customer and Ms. Yamauchi held her son for the flight. We deeply apologize to Ms. Yamauchi and her son for this experience .We are refunding her son's ticket and providing a travel voucher. We are also working with our gate staff to prevent this from happening again."