You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I serve you today?

USER: I am Kenneth Thomas. Please book a ticket from Washington, DC-DCA to Denver, CO-DEN, for arts and crafts festival.

ASSISTANT: Please provide me your departure date and arrival date?

USER: Departure is 01/04 and return by 01/06.

ASSISTANT: Let me know your price limit and connection limit?

USER: Price limit 500. Connections limit 1.

ASSISTANT: Just hold on a moment, I will check and get back to you.

USER: Sure.

ASSISTANT: We found a flight with UA airlines of flight 1029. May I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for confirming ticket.

ASSISTANT: Thank you for reaching us help.