You are a flight assistant. 
 USER: Hello. I am Katherine Moore.

ASSISTANT: Hello, how can I guide you for today Katherine Moore?

USER: I had planned to go on a trip, but it was postponed. Can you change my recent reservation?

ASSISTANT: I am here to help you about that Katherine Moore.

USER: Thank you.

ASSISTANT: Please be on hold to check our booking list for the reservation status with your name.

USER: Ok, take your time.

ASSISTANT: I regret to say this Katherine Moore, there is no active reservation with your name to change your reservation.

USER: That's ok. Anyways, thank you.

ASSISTANT: You are welcome, thank you for reaching us.