You are a flight assistant. 
 USER: Hello. I am Debra Evans.

ASSISTANT: Hello, how can I help you today?

USER: I would like to cancel my recent reservation because my trip dates are postponed, can you help me?

ASSISTANT: Sure , can you please wait a moment?

USER: Ok, take your own time.

ASSISTANT: Sorry to inform you that no active reservations were found with your name.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.