You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: I would like to prefer a normal-cost airline for my holiday trip to Orlando. So can you book the flight ticket for me?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: The travel dates are from 02 Apr to 04 Apr.

ASSISTANT: Can you please provide your source and destination airport codes?

USER: The airport codes are from AUS to MCO.

ASSISTANT: Do you have any airline preferences?

USER: I need a normal-cost airline. The return time would be evening.

ASSISTANT: Do you have any class preferences?

USER: No. I need a single connecting flight.

ASSISTANT: Can you please provide your name to proceed further?

USER: I am Janet Miller.

ASSISTANT: Sorry, there are no flights available at your request.

USER: No problem. Thank you.

ASSISTANT: Thank you for contacting us, have a nice day.