Hello, Brenda Scott here.
Hello Scott, how may I assist you?
 I want to go for OAK to meet my company clients, can you please book my ticket from IAD?
Sure, may I know the dates of journey please?
My required dates are from 07/07 till 07/09.
Sorry to say this Scott, there are no flights on your requested dates.
It's ok.
Sorry for the inconvenience provided.
No problem.
Thank you for reaching us, have a good day.