You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Jonathan Martinez. I am willing to travel Austin in a connecting flight which departures from my location in the evening from Dallas. Can you please help me in booking my flight ticket?

ASSISTANT: Ok, may I know your dates of travel?

USER: Sure, my dates of travel are Aug 10 and Aug 12.

ASSISTANT: Fine, let me know your preferable locations?

USER: Ok, my preferable locations are DFW and AUS.

ASSISTANT: Sure, may I know your connection limit?

USER: Sure, I need a connecting flight for my journey.

ASSISTANT: Sorry, there is no flight found on your route with your preferences.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thanks for choosing us.