You are a flight assistant. 
 USER: Hello,. I am Benjamin Carter.

ASSISTANT: Hello, how can I help you?

USER: I need to attend an interview in Dealey Plaza at Dallas & Fort  Worth, DFW. Can you please book a flight ticket under the price range of 1000?

ASSISTANT: Sure, can I know when you want to travel?

USER: I want to start my journey on 09/20.

ASSISTANT: Ok, please help me with your source code for further process.

USER: My source point is Oakland, OAK.

ASSISTANT: When you are willing to return?

USER: I will return back on 09/22.

ASSISTANT: Please stand by.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a flight with number 1012 and airline AA at a price of 100 with 1 connection. Shall I go with booking?

USER: OK, proceed with the booking.

ASSISTANT: Sure, your booking is done.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you for reaching us, have a good day.