You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a ticket from EWR to IAD to attend seminar, can you help me in booking?

ASSISTANT: Sure, let me know your travel dates please?

USER: I am departing on Jan 26 and return on Jan 28.

ASSISTANT: Any preferences?

USER: I prefer a connecting flight.

ASSISTANT: Can you share your name to proceed further?

USER: My name is Anthony Collins.

ASSISTANT: United Airlines has a connecting flight with number 1023 for fare 600, shall I proceed?

USER: Please proceed for booking.

ASSISTANT: Your ticket is reserved in business class.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.