You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I amend you?

USER: Can you book a flight on name Sandra Miller?

ASSISTANT: Sure, kindly mention your journey points.

USER: Sure. Philadelphia, PHL to oakland, OAK are my location points.

ASSISTANT: May I know when do you want to travel?

USER: I will travel on 03/08 to 03/10.

ASSISTANT: Please wait, I will check and get back to you.

USER: Sure.

ASSISTANT: Thank you for waiting, unfortunately, there is no flights available from your source.

USER: Ok, Thank you.

ASSISTANT: Thank you for choosing us.