Hello, I am Samuel Williams.
user
Hello, how can I help you?
assistant
I need to book a flight ticket on 07/10 to 07/12, Can you please help me for booking?
user
Can I know your desired airport codes please?
assistant
My source point is SFO to DFW.
user
There is no flight on your desired travel dates please.
assistant
Ok, no problem. Thanks for your information.
user
Thank you for opting us.
assistant