You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Sure, may I know your good name?

USER: My name is Robert Baker.

ASSISTANT: Please wait.

USER: Sure.

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

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for choosing us.