You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I would like to cancel my recent reservation due to cancel of my flower festival event at Denver. Could you please help me with the cancellation?

ASSISTANT: Yes, I am here to help you. Can I know your name to check the reservation list?

USER: I am Karen Moore.

ASSISTANT: Ok, please wait a while I will get back to you with the current status.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for your time, sorry to inform we didn't find any reservation on your name.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for choosing us, have a nice day.