You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, I am mirthful to help you with that reservation change. May I know your name please?

USER: Myself Barbara Jones.

ASSISTANT: Please wait for a while, let me check your previous reservation status.

USER: Sure.

ASSISTANT: Thank you for waiting. There is no active reservation found with your name in our reservation list to change it.

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

ASSISTANT: Most welcome, thank you for reaching us.