Hi.
user
Hello. How can I aid you?
assistant
Please book a ticket from IAD to PHL as I want to attend  a music festival.
user
Sure, We are here to address you.
assistant
Thank you.
user
Can I know your travelling dates?
assistant
My travelling dates are Sept 02 and Sept 04.
user
Do you need any break?
assistant
Yes, I need a break.
user
May I know your name?
assistant
My name is Edward Evans.
user
 Is there any other preferences that you would like to add before booking?
assistant
No.
user
We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.
assistant
Not a problem, thank you for the information.
user
Thank you for approaching us.
assistant