You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Samuel Harris here.

ASSISTANT: Harris, how can I assist you?

USER: Can you please book a flight ticket from LAS to MCO?

ASSISTANT: May I know on which dates you want to travel?

USER: Sure, I need to travel on dates of 10/10 and 10/12.

ASSISTANT: Please give me a moment to check our website.

USER: Please check with connection 0 as I need to go urgently.

ASSISTANT: Sure. I found a direct flight with JetBlue airlines and ticket costs you 600.

USER: But my budget is 500 so please recheck with that.

ASSISTANT: Please hold on.

USER: Sure.

ASSISTANT: Sorry, no flight is available as per your requirements.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for contacting us.

USER: Most welcome.