Hi,.
user
Hello. How can I help you today?
assistant
Please book a ticket from Philadelphia, PA-PHL to Atlanta, GA-ATL.
user
Sure, may I know your itinerary dates?
assistant
My departure date is 12/27 and return is by 12/29.
user
Can I know your name to proceed further?
assistant
I am Mary Harris.
user
Sorry Mary, no flight is available on your route.
assistant
Thank you.
user
You are welcome.
assistant