Hi.
user
Hello, how may I help you?
assistant
I am Melissa Green. I want to book a ticket from DCA to SEA, can you help me?
user
Sure, can I know your travelling dates?
assistant
My travel dates are 03/31 and 04/02.
user
Would you like to prefer direct flight or connecting flight?
assistant
I need a connecting flight.
user
Do you have any particular time for departing and returning?
assistant
My depart time is in the afternoon.
user
Which class do you prefer?
assistant
I have provided all my requirements, I am comfortable with any flight.
user
Thank you for giving your valuable time, but there are no flights available based on your request.
assistant
No problem, thanks for checking.
user
Thank you for opting us, we hope to serve you again with better features.
assistant