You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I need to book a flight ticket from HOU to MCO, can you help me in booking a flight ticket?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Sure, my scheduled dates are Mar 2 and Mar 4.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Debra Johnson.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.