Hello.
user
Hello. How may I assist you today?
assistant
I am Thomas Perez. I am planning to book a ticket to attend a meeting at IAD. Can you please help me out to book a ticket from OAK?
user
Sure, please provide me your travelling dates.
assistant
I would like to travel on Sept 18 and return back on Sept 20.
user
Sorry, I could not find any flight with your travelling dates.
assistant
That's fine, thank you for your service.
user
My pleasure.
assistant