Hi.
user
Hello, how may I serve you?
assistant
I want to visit waterfalls located in San Francisco. Can you book a ticket from IAD to SFO?
user
Sure, I will help you. Please send your travelling dates.
assistant
My planned travel dates are 03/13 and 03/15.
user
Do you have any preferences?
assistant
I want a flight with single connection.
user
May I know your name please?
assistant
Sure, Carolyn Scott here.
user
Sorry, there is no flight available with your requirements.
assistant
No issues, thank you for the information.
user
You are welcome, have a nice day.
assistant