You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you today?

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

ASSISTANT: Sure, I am here to help you with that flight ticket booking. May I know your travelling dates, please?

USER: My travel dates Mar 18 Mar 20.

ASSISTANT: Which class do you prefer either economy or business?

USER: I prefer to travel in business class.

ASSISTANT: Do you have any other specifications?

USER: I need a single connection.

ASSISTANT: May I know your name please?

USER: Richard Thomas.

ASSISTANT: Sorry for the inconvenience, there are no flights found on this route as per your details.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us, have a great day.