You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I helpful to you today?

USER: Can you please reserve me a flight ticket in the name of Shirley Carter?

ASSISTANT: Sure, I will help you.

USER: THank you.

ASSISTANT: May I know your trip dates?

USER: My trip dates are 07/15 - 07/17.

ASSISTANT: May I know your boarding and landing point?

USER: My airport codes are DCA - BOS.

ASSISTANT: There is a direct flight with price of 200 and 1025 flight number. Shall I proceed?

USER: Please reserve.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.