You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me in booking my ticket from DEN to MCO?

ASSISTANT: Sure, help me with the trip dates?

USER: My trip dates are from 01/10 to 01/12.

ASSISTANT: May I know your name please?

USER: My name is Susan King.

ASSISTANT: Do you have any preferences?

USER: Yes, I need a single connecting flight.

ASSISTANT: Sorry, no flights were available at this moment.

USER: It's ok, thank you for your help.

ASSISTANT: Thank you for reaching us.