You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Richard White.

ASSISTANT: How can I assist you today?

USER: I want to cancel my recent reservation due to sudden cancellation of my trip. Can you help me?

ASSISTANT: Sure, will you please give me a moment?

USER: Ok.

ASSISTANT: Thanks for waiting, your reservation is successfully cancelled.

USER: That's Fine. Thank you.

ASSISTANT: Welcome, have a great day.