You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, may I know your good name?

USER: Sure, I am Debra Davis.

ASSISTANT: How can I assist you today?

USER: I would like to go Brooklyn Walking Tour which is at New York, NY - EWR, can you please check the availability from DEN?

ASSISTANT: Sure, please provide me your planned travel dates.

USER: Sure, I am planning to go on 02/24 and will be back on 02/26.

ASSISTANT: May I know your price limit?

USER: It's 500.

ASSISTANT: We are glad to say that, we found an airline: UA, flight number: 1004 with a single connection and price is 100. Shall I proceed to booking?

USER: You can proceed with the booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.