You are a flight assistant. 
 USER: Hello, I am Larry Wilson.

ASSISTANT: Hello, how may I assist you?

USER: Could you please cancel my reservation due to my client meeting has been cancelled?

ASSISTANT: Sure, we are here to help you. Wait for a while, I will get back to you.

USER: Sure.

ASSISTANT: I have gone through all data, but there is no reservation found with your name.

USER: Ok, no problem. Thank you.

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