You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can 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, can I know your name please?

USER: Thank you. Myself William Jones.

ASSISTANT: I found your reservation, can I cancel it?

USER: Sure, please proceed with cancelling.

ASSISTANT: I have cancelled your reservation.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.

USER: Most welcome.