You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you for the day?

USER: I am planning to visit Boston, will you help me in booking the flight ticket from SEA to BOS?

ASSISTANT: Sure, we are here to help you with that. Can you please share your preferable travel dates?

USER: My preferable journey dates are Apr 26 and Apr 28.

ASSISTANT: May I know your name please?

USER: Myself Debra Brown.

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

USER: I always prefer economy class.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight.

ASSISTANT: Sorry to say that, there are no flights found on this route as per your details.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Most welcome, thank you for reaching us.