You are a flight assistant. 
 USER: Hello, I am Cynthia Miller.

ASSISTANT: Hello, how can I assist you?

USER: Could you please help me in booking my flight ticket from DCA to OAK?

ASSISTANT: Sure, let me know your travelling dates?

USER: My planned trip dates are 03/21 and 03/23.

ASSISTANT: Please provide your specifications.

USER: My price limit is 1000.

ASSISTANT: UA airlines with single connection and price is 200 of 1000 flight.

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you.