You are a flight assistant. 
 USER: Hi. I am Anthony Collins.

ASSISTANT: Hello, how may I help you?

USER: As my business meeting is cancelled, I want to cancel my reservation. Can you help me?

ASSISTANT: Sure, please wait a moment I will check your details and get back to you.

USER: Ok.

ASSISTANT: Sorry to say, no details found in my database regarding your reservation.

USER: No issue, thank you for checking.

ASSISTANT: Thank you for choosing us, have a nice day.