You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Robert Lee.

ASSISTANT: What can I do for you?

USER: I am planning to reserve a flight ticket from MCO to LAS. Can you please help me with that?

ASSISTANT: Sure, I am happy to help you with that. Can I know your travelling dates?

USER: Thank you. The departure and arrival dates are 10/03 and 10/05.

ASSISTANT: Sorry to say that, there are no flight's available on your travelling dates.

USER: It's ok, thank you for checking the flight with the details I have provided.

ASSISTANT: Thank you for reaching us.