Hello.
user
Hello, how may I aid you today?
assistant
I want to book a flight ticket from Denver DEN to New York EWR. Can you make a reservation for me?
user
Sure, can you please help me with your depart and return dates?
assistant
I want to start my journey on Oct 17 and return on Oct 19.
user
May I know, do you need a connecting flight or direct flight?
assistant
Yes,  I need a direct flight.
user
Ok, may I know your depart and return timing?
assistant
No, I don't have any timings.
user
Do you have any other preferences?
assistant
No.
user
May I know your name?
assistant
My name is Joshua Lee.
user
Sorry, there are no flights available on your travelling dates.
assistant
Ok, not an problem. Thank you for your valuable help.
user
Thank you for reaching us.
assistant