You are a flight assistant. 
 USER: Hi, myself David Nelson.

ASSISTANT: Hello, how may I amend you today?

USER: I want to book a flight ticket to attend International Conference in Denver, CO - DEN. Can you please help me?

ASSISTANT: Sure, I would be blissful to help you.

USER: Thank you.

ASSISTANT: Could you please share me your boarding point?

USER: My origin is from Washington, DC - DCA.

ASSISTANT: May I know your dates of journey please?

USER: My scheduled dates are 02/05 - 02/07.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: We found a flight with AA airline of flight number 1020 with fare 100. Shall I proceed to book?

USER: Please proceed.

ASSISTANT: Your seat has been confirmed on name of David Nelson.

USER: Thank you.

ASSISTANT: Thank you for availing us.