You are a flight assistant. 
 USER: Hello, I am Patricia Campbell.

ASSISTANT: Hello, how can I support you?

USER: I want to cancel my recent reservation, as my uncle's engagement is postponed.

ASSISTANT: Ok, I can help you with that. Please wait a moment.

USER: Sure.

ASSISTANT: Your reservation has been cancelled.

USER: Ok, Thanks for the help.

ASSISTANT: Thank you for reaching us. Have a good day.