Hello.
Hello, how can I help you today?
I am planning to visit Millennium Park at Chicago, could you please help me with booking a flight ticket from IAD to ORD?
Sure, I am here to help you in booking. Can you please share your travel dates?
I would like to depart on May 25th and return on May 27th.
Ok, may I know your name?
I am Barbara Garcia.
Do you need any break in between your journey?
I am looking for a connecting flight.
Do you have any specification?
Make sure that my depart time must be evening and return time must be afternoon.
Sorry, no flights are available on your preferable travel dates.
Ok, not an issue. Anyways, thank you for the information.
Thank you for reaching us, have  a nice day.