Hi.
user
Hello. How can I assist you today?
assistant
I need to book a ticket from DCA to DFW. Could you book a ticket?
user
Sure, will you mention your travelling dates please?
assistant
Travelling dates are Apr, 25 and Apr, 27.
user
Do you have any specifications?
assistant
I prefer connecting flight.
user
Do you have any other preferences?
assistant
I would like to return in the afternoon.
user
Please provide your name.
assistant
My name is George Lee.
user
There are no flights found under your preferable details.
assistant
Thank you.
user
Welcome, have a great day.
assistant