You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I want to change my existing reservation. Could you help me with that?

ASSISTANT: Sure, please provide me the name to check for the status.

USER: Stephanie King here.

ASSISTANT: Please be on hold.

USER: Ok.

ASSISTANT: Thank you for waiting. Here, there is no active reservation have been found to amend it.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.