Hello, I am Thomas Miller.
user
Hello, How can I serve you?
assistant
 I would like to attend a meeting with my client in Fisher Building at Boston, Please book me a flight ticket on dates from 11/11 to 11/13.
user
Sure, Please help me with your journey codes.
assistant
My boarding is at IAD and landing is at BOS.
user
Please wait a minute.
assistant
Ok.
user
Sorry, No flights found with your chosen dates.
assistant
That's Ok. Thanks for the information.
user
Thank you for availing us.
assistant