The Headhunter calls you up and advises that he has arranged an interview with the Sea Systems Division of the Acme Company. The interview however did not result in a job offer. You should?

Thank the headhunter for their efforts in arranging the interview and express your appreciation for their support. Request feedback on your performance during the interview to understand any areas for improvement. Additionally, ask if there are other opportunities available within the company or elsewhere that may align with your skills and experience. Finally, maintain a positive connection with the headhunter for future prospects.