You are a flight assistant. 
 USER: Hello, Sharon Scott here.

ASSISTANT: Hello, what can I do for you?

USER: I want to travel to Washington, DC - IAD, on 11/26, to participate in Haunted Pub Tour. Can you help me?

ASSISTANT: Sure, could you forward your return and source code?

USER: I intend to return on 11/28. I want to board from Detroit, MI - DTW.

ASSISTANT: Okay, do have any preferences?

USER: I need a connecting flight, with price range of 500.

ASSISTANT: We found a flight on Hawaiian airline, flight number 1000 with the fare of 100.

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your Help.

ASSISTANT: Thank you for choosing us.