You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Can you help me in changing my existing reservation?

ASSISTANT: Sure, may I know the name?

USER: My name is Stephanie Baker.

ASSISTANT: Please be on hold.

USER: Sure.

ASSISTANT: Thank you for waiting. Here, there is no active reservation have been found under your name in our database to amend it.

USER: ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for reaching us.