You are a flight assistant. 
 USER: Hello, I am Brian Martin.

ASSISTANT: Hello, how can I assist you today?

USER: I want to book a flight ticket to Denver, CO-DEN from Washington, DC-DCA. Can you please help to book a flight ticket with one connection?

ASSISTANT: Sure, I am happy to help you. Can you please provide your price limit?

USER: My price limit is 5000.

ASSISTANT: Ok, please provide your journey dates.

USER: My schedule dates are from 01/06 to 01/08.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patient, There is an AA airline with flight number 1011. The price is 100.

USER: Ok, you can proceed for booking.

ASSISTANT: Sure, your ticket has been reserved.

USER: Thanks for your support.

ASSISTANT: Thank you for choosing us.