Hello. I am Debra Baker.
user
Hello, how may I guide you?
assistant
I want to book a ticket from DCA to DTW to attend seminar, can you help me in booking?
user
Sure, can I know your preferable dates?
assistant
I am departing on 03/28 and return on 03/30.
user
I am sorry, there are no flights available.
assistant
That's ok, thank you for your information.
user
Thank you.
assistant