You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I need to travel from JFK to IAD, can you help me?

ASSISTANT: May I know your journey dates?

USER: My travel from 07/28 and 07/30.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any other preferences?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Jeffrey Miller.

ASSISTANT: United Airlines providing connecting flight in the business class with fare 100, shall I proceed for booking?

USER: Yes, proceed.

ASSISTANT: Your ticket has been booked with flight number 1018.

USER: Thank you.

ASSISTANT: Thank you for choosing us.