You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: My business meeting has been postponed, could you please help me with changing my recent reservation?

ASSISTANT: I would be happy to help you with that. May I know your name please?

USER: I am Mary Jones.

ASSISTANT: Wait for a moment, I will get back with your details.

USER: Sure, take your time.

ASSISTANT: I am sorry to say that there is no reservation found under your name.

USER: That's ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thank you for the information.

ASSISTANT: Have a great day.