Hello.
user
Hello, how may I help you?
assistant
My name is David Parker. Please secure a seat on a flight to travel from DTW to IAD.
user
Sure, may I know your planned travel dates?
assistant
I will travel on Apr 19th and return 21st.
user
Do you want connecting flight?
assistant
I am fine with a connecting flight.
user
Do you have any other requirements?
assistant
I want to return back in the evening time.
user
Sorry, there are no flights found with your given details.
assistant
No problem, thank you for the information.
user
Thank you for opting us.
assistant