You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you at this moment?

USER: This is Kenneth White. Can you please help me to book a flight ticket from DEN to MCO?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My travel dates are Feb 4th to Feb 6th.

ASSISTANT: Do you have any class or time preferences?

USER: I want to return in the morning.

ASSISTANT: Noted. Do you have any connection or airline preferences? Sorry, there is no flight available on your requested dates.

USER: I want a single connecting flight.

ASSISTANT: You are welcome, have a nice day.