Hi.
Hello. How can I help you?
I am Gary Rodriguez  here, I want to reserve my ticket from IAD to ORD, can you please help me?
May I know your desired travel dates please?
Sure, my preferable dates of journey are from Jul, 11 to Jul, 13.
Do you have any specifications?
Yes, I need a business class.
Sorry to say, there is no flight on your desired travel dates.
Ok, no problem. Anyways, thank you for your service.
Thank you for opting us.