Hello.
user
Hello, how can I guide you for today?
assistant
I am James Anderson. Can you help me to book a connecting flight from DEN to DFW?
user
Can you please share on what dates you are willing to travel?
assistant
I want to fly on 27 Dec and return on 29 Dec.
user
Do you have any class preferences?
assistant
No.
user
Do you have any airline preferences?
assistant
 No, I would like to return in the evening.
user
Do you have any other requirements that you are looking for?
assistant
No.
user
Sorry, there are no flights available at your request.
assistant
It's ok, not a problem, thank you.
user
Thank you for contacting us, have a nice day.
assistant