You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: I am Carolyn Thomas need to book a ticket to BOS from MCO, can you please help me in booking?

ASSISTANT: Sure, I will help you. May I know your depart and arrival dates?

USER: My depart and arrival dates are from Dec 02 to Dec 04.

ASSISTANT: Do you have any specifications?

USER: I need a direct flight.

ASSISTANT: Please, wait a minute.

USER: Ok.

ASSISTANT: Thank you for waiting. I am sorry to inform you that, there is no direct flight available on your route.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for approaching us.