Hi. I am Donna Adams.
user
Hello. How can I help you out today?
assistant
I want to book a ticket.
user
Could you please  let me know your source and destination ?
assistant
My departure is from Los Angeles, CA - LAX to Dallas & Fort Worth, TX - DFW. My travelling dates are from May 21 to May 23. Price limit is 200 with one connection.
user
Please wait a while I will get you back.
assistant
Sure.
user
Thanks  for being patient . unfortunately, There are no flights found.
assistant
Thanks for your information.
user
Thank you for contacting us.
assistant