Hi. Patrick Jones here.
Hello, how may I assist you?
Find a flight for me that is from OAK to CLT.
Ok, please tell me your travelling dates.
My preferable dates for travelling will be 09/27 to 09/29.
Ok, please allow me a minute.
Sure.
Jones, there is no flight  on your requested dates.
Ok, not a problem. Thank you.
Thank you for reaching us.