You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Barbara White here.

ASSISTANT: White, how can I assist you today?

USER: I want to cancel my reservation as I am sick.

ASSISTANT: Sure, I am here to help you. Please wait for a mean while.

USER: Sure.

ASSISTANT: White, I found a reservation by your name and cancelled it successfully.

USER: Thank you.

ASSISTANT: It's my pleasure, have a great day.