Hi.
Hello, how can I help you?
I am Donald Anderson want  to book a ticket with price under 500, can you help me in booking flight ticket from Washington to San Francisco?
Sure, may I know your planned travel dates?
Yes, I have planned to travel on 05/23 and return on 05/25.
Please share me your source and destination codes.
Sure, my airport codes are DC-DCA and CA-SFO.
Please wait for a while.
Ok.
Thanks for waiting, we found an airline: Delta, flight number: 1018 with a single connection and price is 100.
Ok, please proceed with booking.
Your flight ticket has been reserved.
Thank you.
Thank you for choosing us.