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 Robert Martin.

ASSISTANT: Ok, please wait for a mean while.

USER: Ok, take your time.

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

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

ASSISTANT: You are welcome.