Hello, I am Betty Mitchell.
user
Hello. How can I aid you?
assistant
I would like to head to Dallas on 09/19 to participate in scuba driving at Evans river and I intend to return on 09/21, can you help me to book a flight ticket?
user
Sure, I can help you. Can I know your airport codes?
assistant
My plan to start from Washington DC-DCA to reach Dallas, TX-DFW.
user
Do you have any connection limit?
assistant
I prefer one connection.
user
OK. Unfortunately, there are no flight found according to your requriments.
assistant
Ok, no problem. Thanks for your service.
user
Thank you for choosing us.
assistant