Hello.
user
Hello, how can I help you?
assistant
I would like to visit San Francisco for site seeing, please help me in booking a ticket from ORD to SFO.
user
May I know your desired travel dates please?
assistant
My planned travel dates are on Jan 27 and Jan 29.
user
Do you have any specifications?
assistant
I would like to return in the evening.
user
May I know your name please?
assistant
My name is Joshua Campbell.
user
Sorry to say, there is no flight on your desired travel dates.
assistant
Ok, no issues. Thank you for your information.
user
Thank you for opting us.
assistant