You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I would like to cancel my recent reservation, can you help me in that?

ASSISTANT: Can I know your name please?

USER: Sure, myself Karen Young.

ASSISTANT: Please wait for a while. Sorry, no reservation found on your name to cancel.

USER: Sure, I will wait for your response. That's ok, no problem. Thank you for the information.

ASSISTANT: Most welcome.