Hi.
user
Hello, how can I help you?
assistant
I am Lisa Baker. I would like to book a ticket on 09/23 to 09/25, as there is a project meeting at Denver.
user
May I know your desired airport codes please?
assistant
My source is DFW and destination is DEN.
user
Sorry to say, there is no flight on your desired travel dates.
assistant
No issue, thank you.
user
Thank you for opting us.
assistant