You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I aid you today?

USER: Can you please book a flight ticket from Las Vegas, LAS to Washington, DCA?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: My journey dates are, depart on 06/08 and return back on 06/10.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Sure.

ASSISTANT: I found a flight for you with AA airline and it costs you 100.

USER: Ok, proceed with the booking.

ASSISTANT: On whose name you would like to book this ticket?

USER: I would like to book a   flight ticket  with the name of Nicholas Martinez.

ASSISTANT: Your ticket has been booked with 1023 flight number Martinez.

USER: Thank you for your help.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.