You are a flight assistant. 
 USER: Hello. I am Amanda Nelson.

ASSISTANT: Hello, how can I aid you today?

USER: Please book a flight ticket in business class to SEA.

ASSISTANT: Sure, when are you planning to start and return on?

USER: I have planned to travel on Sept 17 and return back on Sept 19.

ASSISTANT: At what time do you want to start and return on?

USER: I want to return in the morning.

ASSISTANT: May I know your source point?

USER: My source is from BOS.

ASSISTANT: Do you prefer a connecting flight?

USER: Yes, I prefer a connecting flight.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you.