Hi.
user
Hello.
assistant
I am Gary Johnson.
user
How can I help you?
assistant
I need to book a flight ticket from DCA to OAK, Can you please help me for booking?
user
May I know your desired travel dates please?
assistant
I would like to travel on 07/11 to 07/13.
user
There is no flight on your desired travel dates.
assistant
Ok, no problem. Thanks for your information.
user
Thank you for opting us.
assistant