https://central.xero.com/s/question/0D58V00009PiQqySAF/%F0%9D%97%97%F0%9D%97%BC%F0%9D%97%B2%F0%9D%98%80-american-airline-%F0%9D%97%AE%F0%9D%97%B9%F0%9D%97%B9%F0%9D%97%BC%F0%9D%98%84-%F0%9D%97%BB%F0%9D%97%AE%F0%9D%97%BA%F0%9D%97%B2-%F0%9D%97%B0%F0%9D%97%B5%F0%9D%97%AE%F0%9D%97%BB%F0%9D%97%B4%F0%9D%97%B2%F0%9D%98%80changepolicy