You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nancy King.

ASSISTANT: How may I aid you today?

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

ASSISTANT: Sure, I am gleeful to help you. Please hold on a moment to check your previous reservation.

USER: Ok, take your time.

ASSISTANT: We regret that, there is no reservation found with your name in our records.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for approaching us, have a great day.