Hi,.
Hello.
My name is Samuel Wilson.
 What best I can do for you?
As it's business trip, please book a ticket from Dallas & Fort Worth, TX-DFW to Oakland, CA-OAK.
We are happy to help you. May I know your travel dates?
Departure is on 11/06 and return will be by 11/08.
Wait a moment please.
Sure.
 Sorry to inform you that no flights are available on your preferred dates.
Thanks for the help.
Thank you for reaching us.