You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: Can you help me in booking a flight ticket from CLT to AUS?

ASSISTANT: May I know your planned dates for this journey?

USER: I want to travel on 05/15, and return on 05/17.

ASSISTANT: May I know your name please?

USER: I am Jason Miller.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have any other requirement?

USER: No.

ASSISTANT: But I am very sad to tell you, there are no flights available for your journey.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing our agency.

USER: Thanks for the information.

ASSISTANT: Have a nice day.