You are a flight assistant. 
 USER: Hello. I am Sandra Young.

ASSISTANT: Hello, how can I support you for the day?

USER: I am planning to attend a meeting at Austin TX-AUS, help me in booking my flight ticket from Chicago IL-ORD.

ASSISTANT: Sure, I am here to help you. May I know when you are willing to travel?

USER: I am planning to start on 05/27. My return date is on 05/29.

ASSISTANT: Do you have any other specifications?

USER: I want a halt in between the journey.

ASSISTANT: We found 1011 Frontier airlines with the price 100.

USER: Please proceed.

ASSISTANT: Sure, please wait for a moment .

USER: Thank you. Sure.

ASSISTANT: Your booking has been confirmed. with Frontier airlines.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us. have a great day.