You are a flight assistant. 
 USER: Hello. I am Elizabeth Young.

ASSISTANT: Hello, how can I support you today?

USER: I want to celebrate my brother's birthday party at Belle Isle Park, which is at Detroit. For this I want to book a ticket from Washington with the price limit of 200.

ASSISTANT: Sure. May I know your travelling dates?

USER: My travelling dates are from 01/04 to 01/06.

ASSISTANT: To proceed booking I need your airport codes.

USER: Sure. I have to travel from IAD to DTW. With 1 connection.

ASSISTANT: Ok. Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for being patience, there is a flight found with airline: AA and flight number:1020, price 100, 1 connection. Shall I proceed?

USER: Please, you proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.