You are a flight assistant. 
 USER: Hello, I am Cynthia Lewis.

ASSISTANT: Hello, how may I aid you at this moment?

USER: Can you aid me in booking a flight ticket from CLT to BOS?

ASSISTANT: Sure, I will help you. Please send your trip dates.

USER: Sure, I would like to go on Nov 05th and return back on Nov 07th.

ASSISTANT: Do you have any limitations?

USER: Ensure it is a single connecting flight.

ASSISTANT: Sorry, there is no flight available with your journey dates.

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome, have a nice day.