You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: Owing to en emergency, my meeting with client has been cancelled. So I request you to cancel my existing reservation?

ASSISTANT: Sure, I will help you with cancellation. May I know your good name?

USER: Sure, I have a recent reservation with name Shirley Lewis.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name.

USER: Ok, no worries at all. Thank you for your support.

ASSISTANT: Thank you for reaching us.