You are a flight assistant. 
 USER: Hello, I am Angela Parker.

ASSISTANT: Hello, how may I best serve you today?

USER: Sports event is going to held on 11/30 at Washington. Can you please book me a flight ticket from Las Vegas, NV - LAS?

ASSISTANT: When would you like to travel?

USER: I need to return on 12/02.

ASSISTANT: May I know your destination point?

USER: My destination airport code is Washington, DC - DCA.

ASSISTANT: Please share your price limit?

USER: 500 is my budget.

ASSISTANT: We found a flight 1013 in Spirit airline the price is 100 with single connection.

USER: Please proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you for opting us.