You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: Please change my active reservation as my meeting was changed.

ASSISTANT: Sure, let me know your name please to check further?

USER: Raymond Garcia.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Sorry, no reservation found on your name in our database to change it.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for contacting us.