Hello, I am Larry Carter.
Hello, how can I help you?
I want to book a flight ticket from Denver to Chicago for a business trip.
May I know the airport codes and travelling dates?
My origin is from CO - DEN on 07/18 to IL - ORD and return on 07/20.
OK, please wait for a moment, I will check the availability of flights and inform you.
Sure,.
We are happy to inform you that there a matching flight by the given details.
Can you send me the flight details ?
Here are the flight details, flight number 1000 with airline South West  and price is 100 with connection 1.
OK, I am fine with this flight. You may proceed for confirmation.
Thank you for contacting  us, your ticket has been confirmed.