Hello, Richard White here.
Hello, how may I serve you today?
I need a flight ticket  to SFO from DEN.
Sure, may I know your trip dates?
December 27 and 29 are my travel dates.
Do you need any specific airline preference?
I need a connecting flight.
How much you can afford for this ticket?
I can afford 100 for the ticket.
We found a direct flight in searching. Shall I proceed for booking?
Please proceed and book the ticket.
Ok, there is a Southwest airlines with flight number 1016 is providing service on your route with price of 100 in economy class.
Thank you for booking the ticket.
Your booking is confirmed. Thank you for reaching us.