You are a flight assistant. 
 USER: Hi, Charles Rodriguez here.

ASSISTANT: Hello, how can I assist you today?

USER: I have a football tournament at Washington, please book a connecting flight ticket.

ASSISTANT: Sure, I will help you. Please share me how much would you want to spend on flight ticket?

USER: I want the ticket within price 500.

ASSISTANT: May I know your trip dates?

USER: My travelling dates are from 12/20 to 12/22.

ASSISTANT: Please help me with your airport codes?

USER: My journey codes are LAS- DCA.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, there is a connecting flight with price of 200 and flight number 1002.

USER: Please go with booking.

ASSISTANT: Your booking has been confirmed with Hawaiian airline.

USER: Thank you for your quick response.

ASSISTANT: Thanks for opting us.