You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Due to some client meeting, I am planning to change my existing reservation. Can you please help me for this?

ASSISTANT: Sure, we are here to help you. May I know your name further process?

USER: Thank you very much for quick access, myself Linda Hall.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: Thanks for waiting there is no reservation found on your name.

USER: Not a big deal, anyhow thank you very much for checking the reservation status.

ASSISTANT: Thanks for approaching us.