You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Owing to an emergency, my meeting with client got cancelled, so I want you to cancel my recent reservation.

ASSISTANT: Sure, may I know your name?

USER: Sure, Jack Adams here.

ASSISTANT: Wait a minute.

USER: Sure.

ASSISTANT: We found your reservation and it has been cancelled.

USER: Thank you for your kind service.

ASSISTANT: Thank you for choosing us.