You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I assist you?

USER: I am Margaret Taylor. I want to attend a food festival which will be held at Orlando, can you help me with booking a flight ticket within price 500?

ASSISTANT: Sure, let me know your travel dates please?

USER: My preferable dates are 09/18 and 09/20.

ASSISTANT: Can I know your airport codes please?

USER: Yes, I want to travel from ORD to MCO.

ASSISTANT: Thanks for your details, we found a connecting flight from Spirit airline of fare 300 and flight number 1004. Shall I proceed?

USER: Yes, please book it.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank for your assistance.

ASSISTANT: Thanks for availing us.