You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I made a earlier reservation to sign a contract for my new project, due to some issues client has rejected my project. so I need to cancel my reservation. Can you please help me out?

ASSISTANT: May I know your name please?

USER: My name is Rebecca Williams.

ASSISTANT: Sorry to say, there is no reservation on your name in our database.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for opting us.