You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, may I know your name please?

USER: My name is Jeffrey Allen.

ASSISTANT: May I know on which dates you are willing to travel?

USER: I am departing on May 29 and return on May 31.

ASSISTANT: May I know your class preference please?

USER: I am ok with any class.

ASSISTANT: May I know your preferable time for journey?

USER: I prefer a connecting flight.

ASSISTANT: There is a connecting flight of fare 200 with economy class in Southwest airline, shall I proceed for booking?

USER: Please proceed for booking.

ASSISTANT: Your ticket has been confirmed with flight number 1026.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.