Hello.
user
Hello, how can I help you?
assistant
I'm Alexander Hall. I am planning to attend music concert at IAD, can you please help me with booking a flight ticket from BOS?
user
May I know your desired travel dates please?
assistant
Sure, I would like to take off on 02/25 and return back on 02/27.
user
Please wait a while.
assistant
Sure.
user
Sorry to say, there is no flight on your desired travel dates.
assistant
Ok, no issues. Thank you for checking.
user
Thank you for opting us.
assistant
You are welcome.
user