You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please change my active reservation as my meeting was changed?

ASSISTANT: Sure, may I know your name to check further?

USER: Jack Edwards.

ASSISTANT: Sorry, no reservation was found on your given name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for contacting us.