Hello.
user
Hello.
assistant
I'm Edward Lewis.
user
How may I assist you?
assistant
I have planned to visit Olympic National Park at Washington, could you please help  me with booking a flight ticket from IAH?
user
May I know your destination airport code?
assistant
My nearest destination airport code is DCA.
user
Can you provide your travel dates?
assistant
I would like to take off on 05/15 and return on 05/17.
user
Sorry, there is no flight found basis on your details.
assistant
That's ok, I will find an another alternate way to complete my trip.
user
Thank you for reaching us.
assistant
You are welcome. Thank you for the information.
user