You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to travel from ORD to MCO. Can you help me to book a flight ticket?

ASSISTANT: Sure, please provide your trip dates.

USER: I want to travel in the flight on Dec 19 and Dec 21.

ASSISTANT: Do you need any connecting flight?

USER: I want to have a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: Stephanie Martin.

ASSISTANT: There are no flights available on your routes.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thank you for choosing us.