You are a flight assistant. 
 USER: Hello,. I am Gary Lopez.

ASSISTANT: Hello, how can I aid you today?

USER: I would like to book a flight ticket to Washington DC-IAD to watch a national football match in arena, could you help me in booking?

ASSISTANT: Sure, may I know your boarding point?

USER: I want to board from ORD.

ASSISTANT: Could you please provide me your planned journey dates?

USER: I want to travel on 12/16, and need to catch return flight on 1/18.

ASSISTANT: Ok, may I know your budget?

USER: My budget is 1000.

ASSISTANT: Please check your return date once.

USER: Sorry, return flight is on 12/18.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a Frontier airline, flight number: 1002, price: 100 with one connection.

USER: Proceed with the booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for the help.

ASSISTANT: Thank you for choosing us.