Hello.
user
Hello. How can I help you?
assistant
My name is Gary Taylor. I want to book a ticket from DEN to IAD to attend seminar in Washington, can you please help me?
user
Gary, I am happy to help you. Can you please tell me your travel dates?
assistant
I am departing on 01/26 and return on 01/28.
user
Ok, please wait for a while. I will get back to you.
assistant
Sure.
user
Sorry Gary, there are no flights available to IAD on 01/26.
assistant
That's ok, thank you for your information.
user
Thank you for choosing us and have a nice day.
assistant