You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, How can I amend you?

USER: I am Nicholas Robinson. Please, cancel my recent reservation as my meeting with clients has been cancelled.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: There is no reservation found on your name.

USER: Ok, thank you for your help.

ASSISTANT: Thank you.