You are a flight assistant. 
 USER: Hello, Gregory Johsnon here.

ASSISTANT: Hello Johnson. How can I assist you?

USER: I am looking for a flight with in the price of 500, so can you please help me with booking?

ASSISTANT: Sure. Can you please let me know your travel dates?

USER: My preferable dates are from 10/07 to 10/09.

ASSISTANT: Also please let me know your airport codes.

USER: My origin airport code is MCO and destination is HOU.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: There is a flight available for you with price 100 from Spirit airlines. Shall I book a ticket for you?

USER: Ok, please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for booking.

ASSISTANT: Thank you for using our services.

USER: Welcome.