You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Owing to an emergency, my business meeting has been cancelled.

ASSISTANT: Sure,  may I know your name?

USER: So I want you to cancel my recent reservation? I am Sarah Hall.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: Thanks for waiting there is no reservations found on your name.

USER: Ok, no worries.

ASSISTANT: Thanks for choosing us.

USER:  Thank you for your prompt service.