You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: Please check the availability of flights from Phoenix to Dallas & Fort Worth under 200 fare.

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: I am willing to travel on 11/08 and on 11/10.

ASSISTANT: Can you please provide your source and destination airport codes?

USER: Sure, PHX and DFW are my source and destination airport codes.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: Yes, I need a direct flight.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: OK.

ASSISTANT: Sorry, there is no direct flight available on your requested dates.

USER: Ok, no problem.

ASSISTANT: May I know your name?

USER: Sure, Jason Johnson is my name.

ASSISTANT: Thank you for contacting us, have a nice day.

USER: Thanks for the information.