You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am Joseph Jackson. Owing an emergency, I want to cancel my recent reservation. Can you please help me out?

ASSISTANT: Sure, I am ready to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Ok, take your time.

ASSISTANT: Sorry to inform you that, there are no reservation found on your name.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us, have a nice day.