You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I need to cancel my reservation due to my planned event got cancelled. So please help me with that.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your name to check your reservation status?

USER: Sure, myself Dennis Brown.

ASSISTANT: Ok, please give me a moment.

USER: Sure, take your time.

ASSISTANT: We found your reservation on your name and cancelled successfully.

USER: That is great. Thank you for your help.

ASSISTANT: Thank you for approaching us.

USER: Most welcome.