You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you at this moment?

USER: Myself Ronald Edwards from New York. I want to go to Oakland next month. Can you please book a flight ticket for me?

ASSISTANT: Sure, I will try my best in booking your flight ticket Ronald.

USER: Thank you for your positive response.

ASSISTANT: Could you please provide me on which dates you have planned your journey?

USER: I want to take off on 12/23 and please confirm my return ticket also on 12/25.

ASSISTANT: Please provide your specified airport codes.

USER: I want to fly from EWR and destination airport is OAK.

ASSISTANT: Sorry to say this Ronald, I am not able to find a single flight which can travel to your region on your planned dates of your journey.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: You are most welcome, thank you for availing our service.