You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I'm Brian White. I am planning to attend business meeting at SEA, can you please help me with booking a flight ticket from DFW?

ASSISTANT: Sure, I am here to help you. Could you please let me know your journey dates?

USER: Sure, I would like to take off on 03/18 and return back on 03/20.

ASSISTANT: Do you have any requirements?

USER: Yes, I need a flight with 0 connection.

ASSISTANT: Sorry, no airline is providing service on your requested dates.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for choosing us, have a nice day.