You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what help are you expecting from our service?

USER: I want the flight with 0 connection limit.Can you please help me out?

ASSISTANT: Sure, may I know your source and destination airport codes?

USER: The source code is from TX-AUS and the destination code is PA-PHL.

ASSISTANT: Ok, can you provide the travelling dates?

USER: The travelling dates are from 07/09 to 07/11.

ASSISTANT: May I know your good name please?

USER: Sure, my name is Larry Phillips.

ASSISTANT: Sorry for the inconvenience, there is no flight available with 0 connection. Thank you for connecting with us.

USER: Ok, no problem. I will search another flight to complete my trip. Thank you for your information.

ASSISTANT: Have a great day.

USER: Thank you.