You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Anthony Perez.

ASSISTANT: How can I help you?

USER:  I am planning to travels from LAS to MCO for a business meeting, can you please help me with booking a flight ticket?

ASSISTANT: Could you please provide your travelling dates?

USER: Sure, my departure date is on 04/14 and the return date is on 04/16.

ASSISTANT: Sorry, there is no flight available at your request.

USER: No, issues. Thank you for checking.

ASSISTANT: You are welcome. Have a great day.