Hello.
user
Hello. How can I help you?
assistant
My name is Margaret Parker, I would like to book a flight ticket please.
user
OK,can you please provide your travelling information?
assistant
Sure, my departure is from San Francisco, CA-SFO  and destination is Atlanta, GA-ATL.
user
Can I know the information regarding  travelling dates?
assistant
I would like to flying out on May 14 and flying back on may 16.
user
Wait for a moment.
assistant
Please make sure that I need a price limit of 200 with one connection. OK.
user
Sorry to tell that there is no flight found.
assistant
OK, thanks for your information.
user
Thanks for contacting us. Have a great day.
assistant