Hello, Timothy Roberts here.
Hello, how can I help you?
I have an invitation to attend a seminar in Detroit University as if now I would like to book a ticket. Can you please help me in booking a ticket with the price  below 500?
Sure, I am happy to help you. Can you please provide your travelling dates?
I intend to travel from 08/10 to 08/12.
Ok, please provide your source.
My journey starts from Boston, MA-BOS. Destination airport code is WA-SEA.
Ok, please wait for a while.
Sure.
Thank you for being patient, No flights were found with your given details.
Ok, no worries. Thanks for your glad service.
Thank you for choosing us.