You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to book the flight ticket from BOS to MCO. Can you please help me?

ASSISTANT: May I know your trip dates?

USER: My travel dates are Jan 19 and Jan 21.

ASSISTANT: Do you prefer any connections?

USER: Yes, I need a single connection.

ASSISTANT: May I know your specifications?

USER: I don't have any other specifications.

ASSISTANT: Can you please provide your name?

USER: Helen Lewis.

ASSISTANT: Sorry, no flight is available for you as per your requests.

USER: Not an issue, thank you for the information.

ASSISTANT: Thank you.