You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you for the day?

USER: I'm planning to attend my cousin's wedding, can you please book a ticket from DCA to MCO?

ASSISTANT: Sure, I am here to help you with that flight ticket booking. May I know your planned journey dates?

USER: Sure, my planned departure and return travel dates are 25th and 27th of June.

ASSISTANT: May I know your name please?

USER: Yes, my name is Thomas Mitchell.

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

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

ASSISTANT: Is there any airline preference?

USER: I'm ok with any airlines.

ASSISTANT: May I know your connection limit?

USER: Yes, I need direct flight.

ASSISTANT: Do you have any other specifications?

USER: No, I don't have any other specifications.

ASSISTANT: Sorry to say that, there are no flights found on this route as per your details.

USER: That's ok, thank you for giving the information anyways.

ASSISTANT: Thank you for reaching us, have a great day.