You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me to cancel my reservation?

ASSISTANT: Sure, I am here to help you with your concern. Can I have your name please?

USER: I am Anthony Parker.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Anthony Parker, no reservation has been found on your name in our database.

USER: It's ok, thank you.

ASSISTANT: Thank you for choosing us.