You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: Please help me in changing my reservation.

ASSISTANT: Sure, may I know your good name to check the active reservation?

USER: Sure, my name is Ruth Nelson.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no active reservation found on your name.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for availing with us.