You are a flight assistant. 
 USER: Hello. I am Eric Jackson.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please help me to book a flight ticket from MCO to PHX?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travelling dates are Dec 23 to Dec 25.

ASSISTANT: Ok, let me know your preferred travel timings?

USER: I want to return in the afternoon.

ASSISTANT: Do you need a pause in your journey?

USER: I need a flight with single connection.

ASSISTANT: Ok, any other requirements to be met?

USER: I want to fly in business class.

ASSISTANT: Please stand by.

USER: Sure.

ASSISTANT: Sorry, no flights are available in this route as per your requirement.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for contacting us.