Hello,.
user
Hello. How may I help you at this minute?
assistant
Can you please help me in booking my flight ticket from IAD to EWR?
user
Ok, I am here to help you with that. Can I know your planned trip dates?
assistant
My planned travel dates are April 15-17.
user
May I know your class preference?
assistant
I do not have any preferences.
user
Can I know your good name?
assistant
Myself, John Allen.
user
Ok, please wait for a minute.
assistant
Ok.
user
Sorry to say that, there are no flights available based on your journey dates.
assistant
Ok, no issues. Thank you for your service.
user
Thank you for approaching us.
assistant