Hello, I am James Carter.
user
Hello, how may I help you?
assistant
I would like to visit Olympic National Park in Washington, so could you please book a ticket for me?
user
Surely, I will help you. Can I have your journey dates?
assistant
Sure, I would like to go on 12/13 and return back on 12/15.
user
Please provide your source and destination airport codes respectively.
assistant
My source and destination airport codes are DTW and DCA.
user
Can I have a moment please?
assistant
Ok, ensure it is a single connecting flight.
user
Sorry, there is no flight available on your mentioned dates.
assistant
That's ok, thank you for checking.
user
You are welcome. Thank you for reaching us, have a nice day.
assistant
Welcome.
user