You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ronald Nelson.

ASSISTANT: How may I help you today?

USER: I am planning to visit Golden gate park in San Francisco, can you please help me in booking a flight ticket from MCO to SFO?

ASSISTANT: Sure, I will help you to book a flight. Can you please share me your travelling dates?

USER: My departure is on 04/03 and return back on 04/05.

ASSISTANT: Please give me a moment.

USER: I want a direct flight to reach my destination.

ASSISTANT: Sorry, no flights are available on your route.

USER: Not an issue, anyway thank you for checking.

ASSISTANT: Welcome, have a nice day.