You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me in booking my flight ticket from OAK to ORD?

ASSISTANT: Sure, May I know your planned dates?

USER: My travelling dates are Mar 26 and Mar 28.

ASSISTANT: May I know your name please?

USER: Myself Elizabeth Collins.

ASSISTANT: Do you have any other requirements?

USER: I need my return ticket at evening time.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a flight in 1009 Southwest Airline with a fare of 200. Can I proceed for booking?

USER: Please proceed with booking.

ASSISTANT: Sure, your booking has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.