You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Owning an emergency, I need a non stop flight in your airline. Can you find it for me?

ASSISTANT: Ok, can I have your trip dates?

USER: My travel dates probable will be from 11/21 till 11/23.

ASSISTANT: Please provide the airport codes.

USER: My location codes are from OAK to PHL.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, there is no direct flight available on this route.

USER: That's ok, no problem.

ASSISTANT: May I know your name?

USER: Myself Jonathan Miller.

ASSISTANT: Thank you for reaching us.

USER: Welcome.