You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you now?

USER: I am Sharon Clark. I want to cancel my recent reservation. Could you help me?

ASSISTANT: Ok, I can help you in cancellation.

USER: Thank you.

ASSISTANT: Please wait, I will check and let you know the status of your reservation.

USER: Ok, take your time.

ASSISTANT: Sorry, we did not find any reservation on your name to cancel.

USER: Tath's ok, no problem. Thank you for helping me.

ASSISTANT: Thanks for consulting us, have a nice day.