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