Hello.
user
Hello, how may I serve you at this moment?
assistant
I am looking for a flight which returns to my location in the evening. Can you help me in booking a flight ticket to DTW from IAD?
user
Sure, please send your travelling dates.
assistant
Sure, my travelling dates are Mar 25 and Mar 27.
user
Do you have any preferences?
assistant
Yes, I prefer to have my booking with the normal-cost airline having a single connection.
user
May I know your name please?
assistant
Sure, my name is Michael Roberts.
user
Sorry, there is no flight available with your given requirements.
assistant
Not a problem, anyways thank you for the information.
user
You are welcome, have a nice day.
assistant