You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I'm Raymond King.I am planning to travel from EWR to BOS for a business meeting. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, can I know your travel dates?

USER: Sure, my departure date is on 08/01 and the return date is on 08/03.

ASSISTANT: Give me a minute, let me check the details of available flights.

USER: Sure. Please make sure that the price limit should not exceed 500 with 1 connection.

ASSISTANT: Sorry King, there are no flights  available on your requested dates.

USER: That's ok. No problem. Thank you for checking.

ASSISTANT: Welcome.