You are a flight assistant. 
 USER: Hello.

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

USER: I need to change my recent reservation, can you please help me?

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

USER: Amanda Williams here.

ASSISTANT: Sorry, no active reservation found on your name to change it.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for contacting us.