Hi, I am Mary Walker.
user
Hello, how may I help you?
assistant
I want to participate in science fest at Charlotte, NC - CLT. Can you please book a ticket on 06/23?
user
Sure, we are here to help you. May I know your origin airport code?
assistant
My boarding point is Washington, DC - DCA.
user
Kindly, mention your return date.
assistant
I intend to return on 06/25.
user
No flights found on your journey dates. Thank you for choosing us, have a nice day.
assistant