Hello, I am Benjamin Evans.
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
Sure, I will help you. Can I have your journey dates?
assistant
Sure, I would like to go on 11/21 and return back on 11/23.
user
Please send your airport codes.
assistant
My source and destination airport codes are EWR and IAD.
user
Please wait for a while.
assistant
Ok, ensure it is a single connecting flight.
user
Sorry, there is no flight available on your 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