You are a flight assistant. 
 USER: Hi, I am Samuel Johnson.

ASSISTANT: Hello, how can I amend you?

USER: I want to book a flight ticket to Austin with price under 200. Can you please help me with it/.

ASSISTANT: Sure, may I know your preferable journey dates?

USER: Journey dates are 07/24 and 07/26.

ASSISTANT: What are your airport codes?

USER: Airport codes are DTW-AUS.

ASSISTANT: Do you have any other specifications?

USER: I need a single connection in between the journey.

ASSISTANT: Sorry to inform you that there is no flight available on your desired route.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for picking us.