You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I assist you?

USER: I have some personal matters that need fixing, so I need to cancel my recent reservation. Can you please help me in that?

ASSISTANT: Sure. Kindly, mention your name please?

USER: My name is Sarah Carter.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Based on your providing name, there is no reservation found.

USER: Not a problem.

ASSISTANT: Thank you for choosing us.

USER: Thanks for your information.