Hello.
user
Hello, how  may I help you?
assistant
I am Larry Jones, want to travel from SFO to SEA. Can you please help me?
user
Sure, may I know your trip dates?
assistant
My trip dates are from 07/04 to 07/06.
user
Please wait.
assistant
Ok.
user
Sorry, we regret to inform you that there is no flight available as per your request.
assistant
It's ok, thank you.
user