You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: I want to book a flight ticket from LGA to MCO. Can you find a flight ticket for me?

ASSISTANT: Sure, I will help you with that.  Can I have your  travel  dates please?

USER: Thank you. My planned trip dates are on Oct 21 and return on 23.

ASSISTANT: Ok,  please let me  know your  preferable timings of your journey.

USER: No, but I need a single connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No, thanks for asking.

ASSISTANT: Can I have your  good name  please?

USER: Ok, I am Anthony Harris.

ASSISTANT: Sorry to inform you that no flight is available to you on your planned dates.

USER: Ok, not a problem. Thank for your help.

ASSISTANT: Thank you for choosing us, have a good day.