Hi.
user
Hello. How may I aid you today?
assistant
I am Karen Collins want to visit Washington, can you book a ticket from DTW to IAD?
user
Sure, please mention your journey dates.
assistant
Sure, my travelling dates will be 10/30 and 11/01.
user
Please wait a moment.
assistant
Ok.
user
Sorry Karen, there are no flight tickets available on your journey dates.
assistant
That's ok, thank you.
user
Thank you for reaching our service.
assistant