You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I need to travel LAS and MCO, can you please reserve flight ticket?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My travelling dates are July,14 and July,16.

ASSISTANT: Do you have any preferences?

USER: I need direct flight with normal-cost airlines preferred.

ASSISTANT: May I know your name please?

USER: Myself Justin Thomas.

ASSISTANT: Sorry, there is no flight available with your journey dates.

USER: Oh! Sad to hear that. Anyway, I will find another alternative to complete my journey.

ASSISTANT: You are welcome, have a nice day.

USER: Thank you for the information.