Hello. I am William Parker.
user
Hello, how may I aid you?
assistant
I want to book a ticket from SFO to ORD to attend seminar, can you help me in booking?
user
Sure, may I know your planned travel dates please?
assistant
I am departing on 09/02 and return on 09/04.
user
Please wait for a moment.
assistant
Sure, take your time.
user
Sorry, there is no flight available on your requested dates.
assistant
That's ok, thank you for your information.
user
Thank you for approaching us.
assistant