Hello.
user
Hello, how may I be of your assistance?
assistant
I am Michelle Anderson. Can you book a flight ticket from DCA to OAK?
user
Sure, may I know your travelling dates?
assistant
My travelling dates are from 12/12 to 12/14.
user
Do you need any stopover within your journey?
assistant
Yes, I need a connecting flight.
user
Thank you for the information. Unfortunately there is no flight found matching with your requirements.
assistant
Ok, No problem. Thanks for the information.
user
Thank you for choosing us.
assistant