Hello. I am Emily Clark.
user
Hello, how may I guide you?
assistant
I would like to book a flight ticket from EWR to ORD.
user
Sure, can I know your preferable dates?
assistant
I am planning to start on 08/19 and return back on 08/21.
user
I am sorry, there are no flights available.
assistant
Ok, no problem. Thank you for the information.
user
Thank you, have a good day.
assistant