You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

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

ASSISTANT: Sure, I am here to help you with this.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: My name is Elizabeth Lewis.

ASSISTANT: Ok, wait for a moment please.

USER: Sure, I will wait.

ASSISTANT: Sorry Lewis, there is no active reservation found as per your name to cancel it.

USER: That's ok thank you for checking.

ASSISTANT: You are welcome.