You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: David Hernandez here.

ASSISTANT: How can I aid you at this moment?

USER: I want to attend my brother's convocation ceremony, so please book my ticket from DCA to DTW.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My trip dates are 07/02 and 07/04.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting. Here, I found a flight with 1 connection and airfare is about 200. Shall I proceed in booking?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed for the flight 1029 in Hawaiian airlines.

USER: Thank you.

ASSISTANT: Thank you for availing our service.