Hello,.
Hello, how can I help you?
Please book a ticket from San Francisco, CA-SFO to Chicago, IL-ORD.
Sure, may I know when you want to travel?
Travel dates are from 03/06 to 03/08.
Ok, do you need any halt?
Please provide a halt.
May I know your name please?
My name is Mary Thompson.
Ok, please wait a minute.
Sure.
Thank you for waiting, sorry to inform no flights found with your details.
Thanks.
Thank you for reaching us, have  a nice day.