You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Brandon Wilson.

ASSISTANT: Wilson, how can I help you?

USER: I want to attend an event in Las Vegas. Can you book a ticket from DCA to LAS?

ASSISTANT: Sure, I am here to help you. Could you please provide me your travel dates?

USER: I want to travel on 08/28 and 08/30.

ASSISTANT: Ok, please wait for sometime. I will get back to you.

USER: Ok.

ASSISTANT: There is a flight available with UA airlines and the ticket fare is 100 only. Are you comfortable with this?

USER: Yes, proceed to booking.

ASSISTANT: Wilson, your ticket is confirmed successfully with the flight-1017. Have a safe flight.

USER: Thank you for your help.

ASSISTANT: You are welcome and thank you for choosing us.