You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be there for you?

USER: I am Virginia Evans, I want to cancel my reservation, can you please help me?

ASSISTANT: Sure, let me check the data base and revert you.

USER: Sure.

ASSISTANT: We could not find any reservation by the name you provided.

USER: No problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your assistance.