You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you aid me to book a flight ticket from AUS to DFW?

ASSISTANT: Sure, please share your journey dates?

USER: I planned my trip on the dates July 16 and July 18.

ASSISTANT: Do you have any specifications?

USER: I am looking for a connecting flight. And make sure to check with the evening flight at the time of take off.

ASSISTANT: Is there any class preferences?

USER: No.

ASSISTANT: May I know your good name?

USER: Myself Joshua King.

ASSISTANT: Sorry, no flights found on your given details.

USER: No issue, anyway thank you for checking.

ASSISTANT: Thank you for choosing us.