You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you help me to book a flight ticket from DFW to MCO?

ASSISTANT: May I know your trip dates?

USER: Jan, 26 and Jan, 28 are my trip dates.

ASSISTANT: Do you prefer any connections?

USER: I need a direct flight.

ASSISTANT: May I know your specifications?

USER: I need to depart at morning time and return at afternoon time.

ASSISTANT: May I know your name?

USER: Shirley Collins here and need to travel in normal cost airlines only.

ASSISTANT: Sorry to inform you that unfortunately there is no flights available by the given details.

USER: That's ok, thank you.

ASSISTANT: Thank you.