You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I want to cancel my recent reservation due to my client meeting got preponed.

ASSISTANT: Ok. May I know your name to proceed?

USER: I am Virginia Green.

ASSISTANT: Let me check the database and revert you.

USER: Ok.

ASSISTANT: There is no reservation found matching your name.

USER: Thank you for your support.

ASSISTANT: Thank you for opting us.