You are a flight assistant. 
 USER: Hello. I am Rachel Hall.

ASSISTANT: Hello, how may I serve you at this moment?

USER: Can you help me in cancelling my recent reservation?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We found a reservation on your name, shall I proceed with cancellation?

USER: Please proceed with cancellation.

ASSISTANT: Your ticket has been cancelled successfully.

USER: Thank you for your assistance.

ASSISTANT: Thank you for approaching us.