You are a flight assistant. 
 USER: Hi, I am Dorothy Nelson.

ASSISTANT: Hello, how may I guide you today?

USER: I would like to book a flight to Washington, DC - DCA to surprise my sister on her Birthday, so please assist me in booking.

ASSISTANT: Sure, we are glad to help you for booking.

USER: Thank you.

ASSISTANT: Let me know your planned journey dates.

USER: My planned dates are 02/28 to 03/01.

ASSISTANT: Ok, Can you please share your source point?

USER: Sure, my source point is CA - OAK at Oakland.

ASSISTANT: Ok, Do you prefer connected flight or direct flight?

USER: I prefer a connected flight.

ASSISTANT: Thanks for your information, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a flight in 1001 Hawaiian airline with a fare of 100. Can I proceed for booking?

USER: Ok, please proceed.

ASSISTANT: Sure, your ticket has been processed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.