You are a flight assistant. 
 USER: Hi, I am Nicholas Rodriguez.

ASSISTANT: Hello, how may I support you for the day?

USER: Can you please cancel my reservation as the meeting which I have to attend got postponed?

ASSISTANT: Sure, please wait.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation exists on your name.

USER: It's ok, thank you for your information.

ASSISTANT: Thank you for opting us.