You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Deborah Hill.

ASSISTANT: How can I assist you today?

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

ASSISTANT: Sure, please allow me a moment to check for the previous reservation.

USER: Ok, take your own time.

ASSISTANT: Deborah, there is no reservation found under your name.

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

ASSISTANT: Thank you for reaching us, have a nice day.