Hi.
user
Hello, how may I help you?
assistant
I have planned to visit Old state building at Boston on 09/20. Can you help me to book a direct flight?
user
Sure, may I know your name?
assistant
I am Kathleen Harris.
user
Harris, can I know your return date?
assistant
I will arrive on 09/22.
user
May I know your airport codes please?
assistant
My landing is at Boston, MA - BOS. I want to fly from Washington DC - DCA.
user
Sorry, there is no flight available as per your requested dates.
assistant
Ok, no issues. Thanks for your help and support.
user
You are welcome.
assistant