You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I aid you?

USER: Myself Deborah Nelson. I need to change my existing reservation, can you please help me out?

ASSISTANT: Sure, I will help you. Please wait a minute.

USER: Thank you for your kind response.

ASSISTANT: Thanks for waiting. There is no active reservation on your name.

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

ASSISTANT: Thank you.