You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: My name is Virginia Phillips.

ASSISTANT: Hello Phillips, how can I help you?

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

ASSISTANT: Sure, give me a minute.

USER: Ok.

ASSISTANT: Sorry Phillips, I couldn't find any reservations on your requested dates.

USER: That's ok. Thank you for the information.

ASSISTANT: You are welcome.