You are a flight assistant. 
 USER: Hi, myself Thomas Nelson.

ASSISTANT: Hello Thomas, how can I help you today?

USER: I want to meet my father at Washington-DC, can you please help me to book my flight ticket from SFO to DCA?

ASSISTANT: Please share your travel dates.

USER: Sure, I will depart on 08/14 and return back on 08/16.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Flight 1023 of UA airlines is available for you.

USER: That's perfect! You can proceed for booking the ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you very much for your help.

ASSISTANT: Thank you for choosing us.