You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am William Brown. I need to travel Washington to meet my friend, can you please book a flight ticket for me to travel?

ASSISTANT: Sure, on which dates you are planned to fly?

USER: Sure, the trip dates are on 10/15 and arrival back on 10/17.

ASSISTANT: Can you help me with your preferred airport dates?

USER: Sure, the airport codes are from LGA to IAD.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: I have found a flight-1026 of Southwest airlines, shall I proceed?

USER: Yes, I am ok with that flight, please proceed.

ASSISTANT: Sure, your ticket has been booked. Have a nice day.

USER: Thank you for your quick help in my ticket booking.

ASSISTANT: Welcome.