Hello. I am Ryan Phillips.
Hello, how can I help you Ryan?
I need to book a flight ticket under fare should not exceed 1000.Can you help me that?
Sure, I will  make you happy in booking a ticket. May I know your airport location codes?
Boarding location is Francisco CA-SFO. Landing point is PA-PHL.
Can you please provide when your travelling and when you are returning?
I need leave on 03/01 and I intend return on 03/03.
May I know your price limit?
I need price limit less than 1000.
Sorry to inform you that there are no flights found on your requested  dates.
Ok, no issues. Thanks for your good assistance.
Thank you for approaching us, I may help you by another time.