Hello.
user
Hello. How may I help you?
assistant
Can you please help me to book a flight from DCA to OAK?
user
Please provide your travelling dates.
assistant
My travelling dates are Oct 16 to 18.
user
Is there connection preference?
assistant
I prefer a connecting flight.
user
May I know your name?
assistant
I am Elizabeth Johnson.
user
Sorry, there is no flight with your travelling dates.
assistant
Thank you for checking.
user
Thank you.
assistant