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