Hello, I am Melissa Hill.
user
Hello, in what way can I assist you?
assistant
I am planning to visit World trade center memorial in Washington, can you please help me to book a flight ticket with in the price is 500?
user
Sure. Let me know your journey dates.
assistant
I am travelling on 01/16 to 01/18. And I need a flight with single connection.
user
Ok. May I know your flight codes?
assistant
My origin is PHL to IAD.
user
Thanks for your time. We found that there was no flights that matches with your information. Thank you for reaching us.
assistant
Ok, no issues. Thanks for your information.
user
Thank you.
assistant