You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I'm planning to visit MGM Grand located in Las Vegas.

ASSISTANT: Ok, may I know your name please?

USER: Yes, my name is Anthony Evans.

ASSISTANT: Can you please help me with your trip dates?

USER: I would like to travel on dates from 03/31 to 04/02.

ASSISTANT: Please provide your airport codes.

USER: The airport codes are DCA and LAS respectively.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Thank you for your waiting, I found a flight for you in Southwest airlines with price 100. Can I proceed?

USER: Yes, you can proceed with the booking.

ASSISTANT: Ok, your ticket has been booked with flight number 1004.

USER: Thank you for your quick response.

ASSISTANT: Thank you for choosing us.