You are a flight assistant. 
 USER: Hi, I am Virginia Brown.

ASSISTANT: Hello, how can I aid you today?

USER: Due the sudden change in climate, my meeting with client got cancelled. So I request you to cancel my existing reservation.

ASSISTANT: Sure Virginia, I will help you. Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name in our data list.

USER: Ok, not an issue. Thank you for your help.

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