You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to cancel my recent reservation, can you please help me with this?

ASSISTANT: Sure, we are here to help you. May I know your good name?

USER: I am David Martinez.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

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

USER: Yes, please cancel it.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.