You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: My name is John Rodriguez, I want to cancel my recent reservation due to cancel of my client meeting.

ASSISTANT: Sure, please wait for a couple of minutes.

USER: Ok.

ASSISTANT: Thank you for waiting, we are sorry to say that no reservation was found on your name.

USER: No problem, thanks for your help.

ASSISTANT: Thank you for availing us.