Hello. I am David Williams.
user
Hello. How can I assist you?
assistant
I planned to attend for a meeting in IAD, can you please help me to book a flight ticket from DCA?
user
Ok, may I know your travelling dates?
assistant
I prefer to travel on Sep 2 and Sep 4.
user
Sorry, no flights found on your route.
assistant
Ok, no problem.
user
Thank you for reaching us.
assistant
Thank you for your time.
user