Hello.
user
Hello. How can I help you?
assistant
I'm Christopher Allen. I am planning to attend music concert at Boston, can you please help me with booking a flight ticket?
user
When would you like to travel please?
assistant
Sure, I would like to take off on 07/30 and return back on 08/01.
user
Can you please tell your travelling locations?
assistant
My source airport code is IAD and the destination airport code is BOS.
user
Sorry, there are no flights available with your requested details.
assistant
Ok, no issues. Thank you for checking.
user
Thank you and have a nice day.
assistant
You are welcome.
user