Hi.
user
Hello. How can I help you?
assistant
I am Patrick Roberts, Can you help me to book a flight ticket from DEN to DCA?
user
Sure Patrick, may I know your journey dates please?
assistant
My travel departure date is 11/09 and return date is 11/11.
user
Patrick, there are no flights available at this moment.
assistant
Ok, not a problem. Thank you for assisting me.
user
Thank you for choosing us.
assistant