You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Gregory Baker. Can you aid me in changing my existing reservation to my new intents which I will provide?

ASSISTANT: Sure, can I know your name for checking the previous reservation?

USER: The name mentioned above is my reservation name.

ASSISTANT: Please give me a minute.

USER: Ok, not a problem will wait.

ASSISTANT: Sorry Baker, there is no reservation available on your name.

USER: That's ok, thank you for spending your time to search my reservation.

ASSISTANT: You are welcome.