You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you at this moment?

USER: Can you please help me in booking from BOS to OAK?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel  dates please?

USER: My travelling dates are from Mar 24 to Mar 26.

ASSISTANT: Can I know your connection preference?

USER: I need a connecting flight.

ASSISTANT: May I know your name please?

USER: My name is Michael Brown.

ASSISTANT: Sorry, there is no flight obtained on your travel dates to book a flight ticket.

USER: Ok, No issues. Thank you.

ASSISTANT: You are most welcome and have a nice day.