Hello,. I am Jacob Lee.
Hello, how may I help you at this moment?
I want to book a flight from IAD to SFO to meet my friend, can you please help me to book a flight with single connection?
Sure, may I know your price limit?
My price is 500.
Could you please mention your depart and return dates?
My journey dates are from 03/25 to 03/27.
Ok, please wait.
Ok.
There is a flight in AA airline with flight number  1006 which matches all your requirements. Shall I proceed?
Ok, please proceed.
Your booking is done with single connection.
Thanks for your service.
Thank you for reaching us.