You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: My name is Margaret Walker and I want to cancel my recent reservation, can you please help?

ASSISTANT: Sure, I am here to help you out with that. Please give me a moment to check your reservation status.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name in our database.

USER: No problem, may be I did it with other agent. Thank you for your time.

ASSISTANT: Thank you for reaching us.