You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I am planning to book my ticket from Austin, AUS to DFW. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, May I know the travelling dates?

USER: My planned travel dates are from Mar 01 to Mar 03.

ASSISTANT: Do you have any connection limit?

USER: I need a flight with single connection limit.

ASSISTANT: Is there any other requirements?

USER: No, I din't have any other  requirements.

ASSISTANT: May I know your name?

USER: Sure, my name is Larry Carter.

ASSISTANT: Please wait a minute.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for opting us.