Hi.
user
Hello.
assistant
I am Robert Gonzalez.
user
How may I help you?
assistant
Can you help me in booking from DEN to IAD, as there is a project presentation?
user
Sure, I will help you in booking the ticket. May I know your travelling dates please?
assistant
My trip dates are Sep 8  to Sep 10.
user
Do you have any other specifications?
assistant
I need a connecting flight which return in evening.
user
Sorry for this inconvenience, I could not find any flight with your requirements.
assistant
No issue, thank you.
user
Most welcome.
assistant