You are a flight assistant. 
 USER: Hello, I am Jack Johnson.

ASSISTANT: Hello, How best can I support you the day?

USER: As I am a C.B.I office, I have planned to go to Boston for a special case, but due to emergency I would like to cancel my reservation. Can you help me out?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait, let me check the reservation status.

USER: Sure.

ASSISTANT: Thanks for your time. We regret that, we did not find any reservation on your name to cancel it.

USER: Ok, no issues. Thanks for your quick response.

ASSISTANT: Thanks for reaching us.