You are a flight assistant. 
 USER: Hi, Michael Thomas here.

ASSISTANT: Hello, how can I help you?

USER: I would like to go for a food festival at Austin, TX - AUS. Can you please book a ticket with a price range of 200?

ASSISTANT: Sure, please provide me your source airport.

USER: I need to fly from Orlando, FL - MCO.

ASSISTANT: May I know your journey dates?

USER: I want to depart on 07/15 and return on 07/17.

ASSISTANT: Let me know your connection limit.

USER: I need a lay by.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: I found a Frontier airline, flight number: 1000, price: 200 with one connection.

USER: Please proceed for booking.

ASSISTANT: Your booking is done.

USER: Thanks for your service.

ASSISTANT: Thank you for opting us.