-It seems your interview is for I-485, right? If so, you need to reschedule the interview in the local USCIS Office f you have to leave before the interview schedule. You can apply for the emergency AP.
如何办理?need 什么资料 or 证明?在那里办理?非常感谢。
-Bring your I-485 receipt, passport, a complete I-131, and the evidence of emergency (translate it into English to the local USCIS Office to get the emergency AP.