You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Shirley Davis here.

ASSISTANT: How can I assist you today?

USER: I was about to hold a press conference in New York but it has been postponed to some other date. So please cancel my flight reservation?

ASSISTANT: Sure, will you please give me a moment?

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation found under your name.

USER: Thank you.

ASSISTANT: Welcome, have a great day.