Hello.
Hello, how may I assist you?
Can you help me in changing my existing reservation?
Sure, may I know your good name please?
I am Brandon Walker.
I have found a reservation on your name, can you please share your airport codes?
 I need to leave from my nearest airport SFO to reach LAS.
May I know your planned travel dates please?
I want to travel on 12/12, and need to catch return flight on 12/14.
Do you have any class preference?
I prefer for economy class.
Do you have any other specifications?
I need a connecting flight.
May I know your good name please?
I already mentioned above.
There is a flight available on your requested dates from Southwest airlines, shall I confirm your booking?
Proceed with the booking.
Your ticket is booked with flight 1017.
Thanks for the help.
You are welcome.