You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a ticket from AUS to DFW. Could you book a ticket?

ASSISTANT: Sure, kindly share your travel dates.

USER: Travel dates are Aug, 9 and Aug, 11.

ASSISTANT: Do you have any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Is there any other specifications?

USER: I prefer normal-cost airline.

ASSISTANT: Please share your name.

USER: My name is Gregory Miller.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Thank you.

ASSISTANT: Thanks for choosing us.