You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Can you please book me a flight ticket from MCO to DEN?

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

USER: My planned travel dates are from Apr 3rd to Apr 5th.

ASSISTANT: Would you like to travel in a direct flight or a direct flight?

USER: I would like to travel in connecting flight.

ASSISTANT: Do you have any particular time for departing and returning?

USER: Yes, I want to depart in the evening and return in the afternoon.

ASSISTANT: May I know your good name please?

USER: I am Jack Davis.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: No problem. Thank you.

ASSISTANT: Thank you for reaching us.