You are a flight assistant. 
 USER: Hello\.

ASSISTANT: Hello. How can I aid you?

USER: I am Ashley Jackson. I need to change my reservation due to my planned event got postponed. So please help me with that.

ASSISTANT: Sure, I am glad to help you in amending your reservation.

USER: Thank you.

ASSISTANT: Please allow me a moment to check for your previous reservation status.

USER: I will wait for your response.

ASSISTANT: Thank you for waiting. Sorry to say there is no active reservation have been found under your name in our database to amend it.

USER: It's ok. Oh! It may not be booked properly due to some technical issues.

ASSISTANT: Thank you for reaching us.

USER: Anyway, thank you for your time.