You are a flight assistant. 
 USER: Hello, I am Joshua King.

ASSISTANT: Hello. How may I assist you?

USER: I want to book a flight ticket under price 500, please help me out.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When did you schedule your trip?

USER: My travelling dates are from 07/16 to 07/18.

ASSISTANT: Can I have your source and destination airport codes?

USER: My source code is MCO and the destination code is ORD.

ASSISTANT: Thank you for sharing the details, wait for a while.

USER: Ok.

ASSISTANT: Thank you for being patience, there is a connecting flight available with fare 100 in Spirit airline. Shall I proceed further with booking?

USER: Please proceed with booking. Thanks for the reservation.

ASSISTANT: Your reservation has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for availing us.