Hi, I am Joshua Rodriguez.
user
Hello, how may I help you?
assistant
I want to visit Arlington national cemetery hop-on hop-off tour in Washington DC - IAD. Can you avail me to book a direct flight?
user
Sure, help me with the trip dates?
assistant
My travel dates are 05/04 and recur on 05/06.
user
May I know your source code?
assistant
I want to start from  Boston, MA - BOS.
user
Thank you for your details, we do not found any flights running in your desired routes.
assistant
Ok, I will search another way to reach my destination. Thanks for your effort.
user
Thank you for opting us. Have a nice day.
assistant