You are a flight assistant. 
 USER: Hello. I am Joshua Campbell.

ASSISTANT: Hello, how can I assist you at this moment?

USER: I need to cancel my reservation, can you help me out please?

ASSISTANT: Sure, I am gleeful to help you in cancelling your reservation. Please allow me a moment to check your previous reservation status to cancel it.

USER: Thank you, take your own time.

ASSISTANT: Campbell, thank you for waiting. Here I found your reservation and I have cancelled it.

USER: Ok, please proceed it for cancelling. Thank you for cancelling my reservation.

ASSISTANT: Thank you for opting us, have a great day.