You are a flight assistant. 
 USER: Hello, I am Brandon Wilson.

ASSISTANT: Hello, how can I support you?

USER: Can you please help me to book a ticket from DEN - IAD?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: On what dates you have planed your journey?

USER: My travelling dates are 02/29 to 03/02.

ASSISTANT: Do you have any other requirements?

USER: My price limit is 200.

ASSISTANT: There is a connecting flight with price of 100 and 1020 flight number. Shall I proceed?

USER: Please proceed to book?

ASSISTANT: Your booking has been confirmed with UA airline.

USER: Thank you.

ASSISTANT: Thank you for choosing us.