You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you for the day?

USER: I am Donald Baker. I want to meet my friend at Orlando, please help me to book my flight ticket from OAK to MCO.

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

USER: Sure, I want to depart on Apr 17th and I have to return back in the morning on Apr 19th.

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

USER: I already mentioned you.

ASSISTANT: May I know your connection limit?

USER: I prefer for a single connection flight.

ASSISTANT: Do you have any other specifications?

USER: No.

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

USER: Sad to hear that. Anyway, thank you for checking.

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