Hello.
user
Hello, how can I aid you today?
assistant
My name is Kathleen Gonzalez and I want to book the flight ticket from IAD to PHL.
user
Sure, we are here to help you.
assistant
Thank you.
user
When are you planning to start and return on?
assistant
My preferable travel dates are 02/07 and 02/09.
user
Do you need a business class or a economy class?
assistant
I am comfortable with any class.
user
Do you prefer a connecting flight?
assistant
I need a connecting flight.
user
At what  time do you want to travel?
assistant
I would like to return in the evening.
user
Thank you for your details, there are no flights found with the given details.
assistant
Thank you for the information.
user
Thank you.
assistant