Hello.
user
Hello, how can I help you?
assistant
I am planning to visit Denver, will you help me in booking the flight ticket from JFK to DEN?
user
May I know your desired travel dates please?
assistant
My travelling dates are Apr 12 and Apr 14.
user
May I know your name please?
assistant
Myself Jack Robinson.
user
Can I know your connection limit please?
assistant
I need a connecting flight.
user
Sorry to say, there is no flight on your desired travel dates.
assistant
Can you please check with my  depart time it must be in morning.
user
There is no flight on your preferred travel dates.
assistant
Ok, not an issue. Thank you for your information.
user
Thank you for opting us.
assistant