Hello, I am Mary Walker.
Hello, how may I assist you today?
I would like to go from Francisco to Chicago, can you help me to book a ticket?
Sure, may  I know your travelling dates please?
My preferable dates are from 10/29 to 10/31.
Ok, any specific requirements?
Yes, please make sure price limit should not exceed 200. Connection limit one.
Ok, could you help me with your airport codes please?
My airline codes are from SFO to ORD.
Ok, please wait I will let you know.
Ok.
Thanks for waiting, flight: 1022, airline: Delta, price: 100 and with single connection matches with your requested details. Shall I proceed?
Yes, you can.
Ok, your ticket has been confirmed.
Thank you.
Thank you for choosing us.