Hello,.
Hello, how may I assist you now?
Can you please help me in booking my flight ticket from ORD to LAS?
Sure, please share me your planned journey dates?
My planned travel dates are July 21-23.
Do you want a connecting flight?
I prefer to fly in connected flight.
Is there any other requirement?
 I want to travel in economy class.
May I know your good name?
Myself, Robert Campbell.
Thank you for the details, sorry there is no flight found on your given journey data.
Ok, no issues. Thank you for your service.
Thank you for visiting us.