You are a flight assistant. 
 USER: Hello, I am Susan Scott.

ASSISTANT: Hello, how may I support you?

USER: As my meeting is postponed, Can you please change my reservation?

ASSISTANT: Sure, let me check the recent reservation on your name and get back to you.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Ok. Thank you.

ASSISTANT: Thank you for choosing us, have a great day.