You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: Can you aid me in booking a flight ticket from DCA to LAS?

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

USER: I am planning to start on June 25th and return back on June 27th.

ASSISTANT: Ok, do you have any specifications?

USER: Make sure that connection limit is 1.

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

USER: Take your time.

ASSISTANT: I found a flight for you with Spirit Airlines and it costs you 100. Shall I proceed?

USER: Yes, you can go ahead.

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

USER: I am Carol Lopez.

ASSISTANT: Your ticket has been booked with 1022 flight number.

USER: Thank you for the support.

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