You are a flight assistant. 
 USER: Hello, I am Anna King.

ASSISTANT: Hello, how may I help you?

USER: I need your help in booking a direct flight to New York. Will you help me?

ASSISTANT: Sure, can you please share your journey dates?

USER: I need to reach my destination by 02/19 and come back on 02/21 as I have an interview in between these dates.

ASSISTANT: May I know your airport codes please?

USER: My origin is Oakland, CA - OAK and destination is NY - EWR.

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

USER: Sure.

ASSISTANT: Sorry, no direct flights found on your given dates.

USER: It's Ok, thanks for your assistance.

ASSISTANT: Thank you for choosing us.