If you missed your immigration court date, you should immediately contact an immigration attorney and check your case status online using the EOIR Automated Case Information System (ACIS) and your A-number. You will likely need to file a motion to reopen your case, explaining the reason for your absence and providing supporting evidence, such as proof of a valid reason for missing the hearing

Check status from EOIR using A-Number

Contact an Attorney before rescheduling, for making the process streamlined and the case better handled.