You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be at your service today?

USER: Could you please cancel my recent reservation? Could you please cancel my recent reservation?

ASSISTANT: Sure, may I know your name please?

USER: I am Carolyn Miller.

ASSISTANT: I am sorry no reservation found on your name.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.