You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to book a ticket from DTW to DCA to attend seminar, can you help me in booking?

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates?

USER: I am departing on July 28 and return on July 30.

ASSISTANT: May I know your name?

USER: My name is Edward Green.

ASSISTANT: Do you have any other specifications?

USER: I need a flight with connection limit 0.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: We found Hawaiian airline with direct flight and number 1012 fare of 500 with business class, Shall I proceed for booking?

USER: Please proceed for booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thanks for approaching us.