You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I have to attend workshop at MSP, can you please help me to book a flight ticket from DFW?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: My journey dates are Aug 04 and Aug 06.

ASSISTANT: Do you have any connection limit preference?

USER: I need a direct flight.

ASSISTANT: Do you have any other specifications for this trip?

USER: No.

ASSISTANT: May I know your good name please?

USER: My name is Susan Smith.

ASSISTANT: Susan Smith, there are no direct flight services are available on this route on your provided dates.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for contacting us.