You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you today?

USER: Can you aid me to cancel my reservation due to emergency?

ASSISTANT: Sure, may I know your good name?

USER: Joseph Young here.

ASSISTANT: We found a reservation on your name, shall I cancel it?

USER: Please proceed for cancellation.

ASSISTANT: Your reservation has been cancelled successfully.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.