Hello.
Hello, How can I help you?
I am Nancy Roberts. I want to  book a ticket from PHL to MSP. Could you help me?
Sure, Please help me with your travel dates.
My travel dates are from 02/25 to 02/27.
Please wait a minute.
OK.
Sorry, No flights found with your chosen dates.
That's ok, no problem. Thank you for helping me.
Thank you for availing us.