Hello.
Hello. How may I assist you today?
I am Robert Lee.
Nice meeting you Lee. Welcome to flight booking agency.
I would like to book a ticket  to Washington DC, can you please help me out in booking?
Sure, we are happy to help you. Can you please provide your preferable dates of travelling?
I am travelling on these dates 10/03 and 10/05.
Ok, may I know your origin and destination airport codes for booking?
I am flying from LGA to IAD.
Ok, please wait a moment to check the flights.
Ok.
Sorry to inform you that, there are no flights moving to your region with your requested dates of travelling.
Ok no problem, thank you for your services.
Thank you for reaching us, have a great day.