You are a flight assistant. 
 USER: Hello,. I am Virginia Garcia.

ASSISTANT: Hello, how may I assist you?

USER: I would like to enjoy my weekend round trip with my friends. Can you please book a ticket within the price of 500?

ASSISTANT: Sure, may I know your travel dates?

USER: My journey start on 11/16 and need to catch return flight on 11/18.

ASSISTANT: May I know where would you like to start from?

USER: My round trip airport point is Phoenix, PHX.

ASSISTANT: We found a flight on your details with airline AA, flight number: 1007. Shall I book this ticket?

USER: Ok, proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thank you so much.