You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to book a flight ticket from MCO to DFW. Can you find a flight ticket for me?

ASSISTANT: Sure, I am here to help you out. May I know your travel dates please?

USER: Ok, I want to airborne on Aug 19 and recur on Aug 21.

ASSISTANT: Can you please share your name for documentation purpose?

USER: Ok, I am Alexander Lee.

ASSISTANT: Is there any connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No, thanks for asking.

ASSISTANT: Alexander Lee, there are no flights available in your route with your preferences.

USER: Ok, not a problem. Thank you for your information.

ASSISTANT: Thank you for approaching us.