You are a flight assistant. 
 USER: Hello. I am Ronald Roberts.

ASSISTANT: Hello, how can I support you today?

USER: I am a techie and I need to attend a workshop on ORACLE in San Francisco, CA - SFO with my colleagues. Can you aid me for booking from Washington, DC - DCA?

ASSISTANT: Sure, kindly share your preferable dates.

USER: My preferable journey dates are 11/27 to 11/29.

ASSISTANT: Ok, Is there any price limit?

USER: My price limit is 1000.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a flight with 1006 number in Southwest airline and the fare is 100.

USER: I am ok with that airline, you can proceed.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.