Hello, I'm Benjamin Anderson.
user
Hello. What can I help you with?
assistant
There is a invitation from white house for a event on 10/11 in DTW, so I want to book a ticket from DCA.
user
Sure, can I know your arrival dates?
assistant
It's a two day trip, I would like to go on 10/11 and return on 10/13.
user
Ok, give me a moment.
assistant
Ok sure.
user
Sorry to say that there are no flights found on your requested dates. Sorry for the inconvenience provided.
assistant
Ok, I will look for the road way, thank you for your information.
user
You are welcome.
assistant