You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Actually, I would like to cancel my reservation which is done recently due to health issues, can you please help me in this condition?

ASSISTANT: Sure, I will help you with the flight ticket cancellation.

USER: Thank you.

ASSISTANT: I have searched online but I could not find your flight reservation to cancel it. May I know your name please?

USER: Ok, no problem. My name is Jeffrey Perez.

ASSISTANT: Thank you Jeffrey.

USER: Thank you for your service.