Hello, This is William Moore.
user
Hello, how can I assist you?
assistant
I often travel to Boston, I am a engineer and involved in a building construction project. So, please book a ticket from DC - IAD to MA - BOS.
user
Sure.
assistant
And the dates are 07/13 to 07/15.
user
Thanks for the information. Please wait for a moment, I will check and revert you.
assistant
Ok.
user
We did not found any flights matching your given criteria.
assistant
Ok, not a problem.
user
Thanks for choosing us.
assistant
Thanks for your information.
user