You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Good morning, how may I help you?

USER: Myself Benjamin White here. I just want to cancel my recently done reservation, because of some health issues. Can you please help me in this?

ASSISTANT: Ok, Benjamin White.Wait a while please.

USER: Sure.

ASSISTANT: Reservation is not found on your name, Benjamin White.

USER: That's fine.

ASSISTANT: Thanks for reaching us. Have a great day.

USER: You are welcome.