You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I best aid you today?

USER: I am Andrew Hill. I need a reservation to meet my project manager. Can you please book a ticket with a price limit of 500?

ASSISTANT: May I know from where you are flying from and landing at?

USER: I would like to fly from DCA to LGA.

ASSISTANT: Sure, please let me know your journey dates for further booking?

USER: My travel dates are on 12/26 and 12/28.

ASSISTANT: OK, please wait for a while.

USER: Sure, I will wait.

ASSISTANT: There is a flight found with Frontier airline of flight number 1009 and a flag stop in between. Shall I proceed for booking?

USER: Yes, please book this ticket.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you so much.

ASSISTANT: Thanks for choosing us, have a good journey.