You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Virginia Clark.

ASSISTANT: How may I help you?

USER: I want to cancel my reservation, can you help me?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Sorry, there are no reservation found on your name.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for choosing us.