You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Andrew Lopez.

ASSISTANT: How can I assist you?

USER: Can you help me in booking from BOS to MCO, as I have a business meeting?

ASSISTANT: Sure, can I know your travel dates?

USER: My travelling dates are 09/22 to 09/24.

ASSISTANT: Lopez, there is no flight available on you requested dates.

USER: No issue, thank you for checking.

ASSISTANT: You are welcome.