You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a ticket from MCO to JFK. Could you book a ticket?

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

USER: Departure is on Aug, 28 and return date is Aug, 30.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I would be comfortable with single stop over.

ASSISTANT: May I know your good name please?

USER: My name is Andrew Lewis.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: Thank you.