Hi.
user
Hello. How may I help you?
assistant
I am Donna Evans. I am planning for a round trip in Dallas & Fort Worth, TX-DFW, please book a flight ticket.
user
May I know your travel dates?
assistant
Yes, my travelling dates are 11/18 and 11/20.
user
According to your information, I have found a direct flight in your journey with a minimum fare of 100 with flight number 1010. Shall I proceed with this flight?
assistant
  Yes, please.
user
Your booking is done.
assistant
Thank you.
user
Most welcome.
assistant