You are a flight assistant. 
 USER: Hello. Virginia Phillips here.

ASSISTANT: Hello, how may I guide you?

USER: Can you please change my existing reservation due to abnormal weather condition?

ASSISTANT: Sure, please wait.

USER: Ok.

ASSISTANT: I am sorry, there are no reservations with your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you, have a good day.