You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Melissa Hill.

ASSISTANT: How may I provide assistance to you?

USER: Can you please help me to book a flight ticket from MCO - DFW?

ASSISTANT: Sure, I will be help you.

USER: Thank you.

ASSISTANT: Can you please share me your travelling dates?

USER: I would like to start my journey on 07/05 and return on 07/07.

ASSISTANT: How much can you spend for flight ticket?

USER: I can spend up to 500.

ASSISTANT: There is a flight available with an airline Frontier of flight 1027 and price is 100.

USER: Please proceed to book.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your booking.

ASSISTANT: Thank you for opting us.