You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Due to an emergency, I want to cancel my recent reservation. Can you help me?

ASSISTANT: Sure, may I know your good name please?

USER: Matthew Campbell here.

ASSISTANT: Thank you for waiting. We found a reservation by your name. May I proceed for cancellation?

USER: Sure, Please proceed.

ASSISTANT: Your reservation has been cancelled successfully.

USER: Thanks for the help.

ASSISTANT: Thank you for picking us.