You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to meet my brother at Oakland, will you help me in booking the flight ticket from DFW to OAK?

ASSISTANT: Sure, when do you want to start and return on?

USER: My preferable journey dates are May 02 and May 04.

ASSISTANT: Do you need a connecting flight?

USER: I need a flight with single connection.

ASSISTANT: Do you have any other specifications?

USER: I don't have any other specifications.

ASSISTANT: Can I know your good name?

USER: Myself Elizabeth White.

ASSISTANT: Thank you for your details, we found a connecting flight 1003 in class economy which is in Southwest airline. Shall I proceed?

USER: Sure, you can proceed with the booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for helping me in booking the flight ticket.

ASSISTANT: Thank you.