Hello. I am Eric Hall.
Hello. How can I aid you?
I am planning to visit culture and fine arts expo at Dallas, help me in  booking my flight ticket from CA-SFO.
 May I know your travel dates?
My travelling dates will be 09/03 to 09/05.
Sure, provide me your destination point?
My destination point is TX-DFW.
 Ok, please wait.
Sure.
 Sorry, no flights are available on your requested dates. Thank you for availing us.