You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Can you please reserve me a flight ticket from MCO to ORD?

ASSISTANT: I am here to help you with your concern. Sure, can you please let me know your trip dates?

USER: My trip dates are from Aug 23rd to Aug 25th.

ASSISTANT: Would you like to fly with connecting flight or direct flight?

USER: I want a direct flight to travel.

ASSISTANT: Are you comfortable with economy class flight or business class flight?

USER: I am comfortable with any class.

ASSISTANT: Could you help me with your name please? So, I can check for the flights availability.

USER: I am Donna Clark.

ASSISTANT: Sorry, there are no flights are available for your desired intent.

USER: No problem. Thank you.

ASSISTANT: Thank you for reaching us.