You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am looking to reserve a flight ticket from Dallas & Fort Worth, can you please find a flight to Houston with the connection limit 1?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Thank you. I have planned to travel on the dates of Feb 29th and Mar 02nd.

ASSISTANT: Can I know your preferences?

USER: I prefer to travel in an business class.

ASSISTANT: Do you need any specifications?

USER: I need a flight which is returning in the afternoon time.

ASSISTANT: May I know your airport codes please?

USER: The origin and destination airport codes are DFW and HOU.

ASSISTANT: Can I know your name please?

USER: Sure, my name is Margaret Jackson.

ASSISTANT: Sorry, there are no flights found in our database.

USER: It's ok, not an issue. Thank you for your time.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.