Hello.
user
Hello.
assistant
I am Lisa Jackson.
user
What service you are expecting from our flight booking agency?
assistant
I am planning to book  a ticket from IAD to BOS. Can you please help me out?
user
Sure, I am here to serve you with that. Could you please provide me your planned travel dates?
assistant
I would like to travel on 11/07 and return back on 11/09.
user
Ok, please give me a minute.
assistant
Sure.
user
I am sorry for the trouble which is caused to you, there are no flights found on the dates you have provided to me.
assistant
That's fine. Thank you for your service.
user
My pleasure. Thank you for contacting us.
assistant