Hello. Mark Taylor here.
Hello, do you need any help from us?
I would like to visit SEA to meet my brother, can you aid me to book a flight ticket from SFO?
Sure, could you please share your departure and arrival day?
My travelling dates are 05 and 07 of Feb.
 The economy class with flight number 1008 of Hawaiian airline is available having connection as 1 and fare as 200, is it ok for you?
Proceed to booking.
Ok, your reservation is confirmed.
Thanks for helping me.
You are welcome, have a great day.