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