Hi. Joseph Hall here.
user
Hello, how may I guide you?
assistant
Can you book a ticket from DFW to DCA?
user
Sure, can I know your preferable dates?
assistant
Ok, here are my travel dates 07/31 and 08/02.
user
I am sorry, there are no flights available.
assistant
Please proceed.
user
Thank you.
assistant
Thank you.
user