You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Benjamin Taylor.

ASSISTANT: Ok.

USER: I want to cancel my reservation due to postpone of my interview date. Can you help me?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait for a  while.

USER: Sure.

ASSISTANT: Sorry Benjamin Taylor, no reservation done on your name.

USER: That's ok.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your information.