Hello.
user
Hello, how may I aid you today from my end?
assistant
My name is Barbara Brown, I want to book a normal-cost airline to visit Washington. Can you book a connecting flight for me?
user
Sure, I am here to help you out. Please provide me your trip dates.
assistant
I will fly on June 5th and return on June 7th.
user
May I know your location airport codes?
assistant
My source point is PHX and my destination is IAD.
user
Is there any other requirement?
assistant
Yes, I want return flight in afternoon.
user
Sorry Barbara Brown, there is no flight  in your route as per your requirement.
assistant
Ok, thank you for the information.
user
Thank you for reaching us.
assistant