Hi.
Hello, how may I assist you now?
I need to book a flight ticket from SFO to DEN to enjoy music festivals.
May I know your journey dates?
Sure, my scheduled dates are Feb 10 and Feb 12.
May  I know your name please?
Sure, Jennifer Gonzalez here.
Do you have any other requirements?
I would prefer economy class.
Sorry to inform you, there are no flights available on your mentioned dates.
Ok, no issues. Thank you.
Thank you for choosing us.