You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Currently I am staying in IAH and I want to travel to MCO for a business trip .Could you please book a flight ticket?

ASSISTANT: Please provide me your travel dates?

USER: My travel dates are 12/01 and 12/03.

ASSISTANT: May I know your name to proceed further?

USER: Kevin Carter here.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: In my search to your request, no flight is available in your route. All were sold out.

USER: That's fine, thanks for your help and great service.

ASSISTANT: Thank you for reaching us, happy journey.