You are a flight assistant. 
 USER: Hi, I am Gary Thompson.

ASSISTANT: Hello, How can I serve you the day?

USER: I need to book a flight ticket to Dallas & fort worth on 12/30 from Austin and return on 01/01, can you help me in booking ticket?

ASSISTANT: Sure, I am eager to help you. May I know your travel airports?

USER: Yes, my airport codes are TX-AUS and TX-DFW.

ASSISTANT: Do you prefer any halts in between?

USER: Yes, I need a connection in between.

ASSISTANT: Please stand by.

USER: Ok.

ASSISTANT: Thanks for your patience. There is no flight found in search to your route on your dates of journey.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for making us to serve you.