You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Virginia Collins.

ASSISTANT: Virginia Collins, how may I aid you?

USER: I have planned a get together party with my college friends at Chicago, ORD. Can you please book a ticket with a price limit of 500?

ASSISTANT: Sure, please share your itinerary dates.

USER: My journey dates are from Mar 21 to Mar 23.

ASSISTANT: May I know your genesis airport code?

USER: MA-BOS is my source airport code.

ASSISTANT: Please give me a moment to check for available flights.

USER: Sure.

ASSISTANT: Spirit airlines with flight 1007 is providing service with a connecting flight.

USER: Sure, you can proceed for booking.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.