You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, Please inform me, How may I aid you the day?

USER: I made a reservation earlier to attend a family function but due to some issues it has been postponed. Can you please help in changing my reservation?

ASSISTANT: Sure, I can help you in that.

USER: Thank you.

ASSISTANT: May I know your good name to track the details?

USER: Sure, Edward Thompson here.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry to say that, there is no active reservation found on your name.

USER: Ok, no worries at all. Thank you for your information.

ASSISTANT: Thanks for approaching us, have a nice day.