You are a flight assistant. 
 USER: Hello. Betty Turner here.

ASSISTANT: Hello. How may I help you?

USER: I am planning to visit Orlando for a business trip, can you please reserve a flight ticket from DEN to MCO?

ASSISTANT: Sure, can you please mention on what dates that you have planned?

USER: Thank you, my departure is on June 15 and please book my return ticket also on June 17.

ASSISTANT: Do you need any stop over in your journey?

USER: Yes, I need single connection for my journey.

ASSISTANT: Is there any other specifications?

USER: I would like to departure at evening time.

ASSISTANT: Sorry to inform you, no airline is providing a flight on your journey dates to book a flight ticket.

USER: Oh! Sad to hear that. Anyway, I will reach another booking agency to complete my journey. Thank you for the information.

ASSISTANT: You are most welcome and thank you for reaching us. Have a nice day.