Hello.
user
Hello. How may I help you?
assistant
I am looking to make a flight ticket from Dallas & Fort Worth, so can you find a flight with connection limit 0?
user
Sure, may I know your airport codes?
assistant
My preferred airport codes are DFW and DEN.
user
Yes, can I have your travelling dates?
assistant
My travelling dates are 12/04 and 12/06.
user
Ok, could you provide your name?
assistant
Yes, I am Joseph Johnson.
user
Sorry Joseph, no flight's found on your connections.
assistant
It's ok, thank you for searching.
user
Thank you for contacting  us.
assistant