Hello,. My name is Timothy King.
user
Hello, how can I assist you today?
assistant
Can you please assist me to book a flight ticket?
user
Let me know the details of your journey?
assistant
Sure, my travelling dates are from Oct 13 to Oct 15. I would like to travel from Washington, DC - DCA to San Francisco, CA - SFO.
user
Please wait a moment, I will check the availability and get back to you.
assistant
OK.
user
Sorry to inform you, unfortunately there is no flight found on your given details.
assistant
Thanks for your information.
user
Thank you for choosing us.
assistant