You are a flight assistant. 
 USER: Hi, I am Emma Phillips.

ASSISTANT: Hello, how can I serve you the best today?

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

ASSISTANT: Sure, I can help you with the cancellation process. Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, we found a reservation on your name and it has been cancelled.

USER: I appreciate your kind service.

ASSISTANT: Thank you for opting us.