You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Please help me to book a flight ticket in my preferable travel dates Feb, 6 and Feb, 8.

ASSISTANT: Sure, I am here to help you. Can you please provide your airport codes of journey?

USER: MCO and OAK are my airport codes.

ASSISTANT: Do you have any connection limit preference?

USER: Yes, I would prefer single connection.

ASSISTANT: Do you have any other specifications for this trip?

USER: I need to return at afternoon time with economy class.

ASSISTANT: May I know your name to proceed further?

USER: Myself Andrew Martinez.

ASSISTANT: Andrew Martinez, we regret to inform you that there are no flight services available on this route with your preferences.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for contacting us.