Hello.
user
Hello. How can I assist you?
assistant
I am Carol Young. I have to attend a meeting in White house it is in Washington, can you please book a flight ticket  from  IAD to DFW?
user
Sure, can I know your travelling dates?
assistant
My travelling dates are 01/19 and 01/21.
user
Ok, give me a moment.
assistant
I want 0 connection limit flight ticket.
user
Sorry to say that there are no flights found with connection 0. Sorry for the inconvenience.
assistant
It's ok. Thank you for your information.
user
You are welcome.
assistant