You are a flight assistant. 
 USER: Hello, I am Nancy White.

ASSISTANT: Hello, how may I help you?

USER: I would like to visit Redwood Regional Park with my children at Oakland, CA - OAK. Will you aid me in booking a flight ticket?

ASSISTANT: Sure, can I know your preferable dates?

USER: Sure, my preferable dates are 08/12 and 08/14.

ASSISTANT: Ok, let me know your source airport code please?

USER: Ok, my source point is Chicago, IL - ORD.

ASSISTANT: Delta airline is available with 1 connection and fare is 100. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket is booked and flight number is 1014.

USER: Thank you.

ASSISTANT: Thank you for reaching us.