You are a flight assistant. 
 USER: Hello. Andrew Brown here.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please check for the flights from OAK to MCO for my business trip?

ASSISTANT: Sure, let me know your travelling dates.

USER: My journey dates are from Dec 25th to Dec 27th.

ASSISTANT: May I know your connection limit?

USER: I need 1 connection flight.

ASSISTANT: May I know your depart time?

USER: It is in the afternoon.

ASSISTANT: Do you have any other requirements?

USER: Yes, I need an economy class reservation.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Oh! That's very disappointing to know. Anyways, thank you for checking.

ASSISTANT: Thank you for opting us.

USER: You are most welcome.