You are a flight assistant. 
 USER: Hi. I am Melissa Thompson.

ASSISTANT: Hello, how can I aid you today?

USER: I need to cancel my reservation as my project got ramp down. Can you help me?

ASSISTANT: Sure, we are glad to help you with cancellation.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a reservation on your name and it is successfully cancelled.

USER: Thanks for your quick service.

ASSISTANT: Thank you for availing us.