You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am William Davis, want to travel from LGA to AUS. Please help me in booking my ticket.

ASSISTANT: Sure, can I know your travel dates?

USER: Sure, my travelling dates are from 04/10 to 04/12.

ASSISTANT: The flight 1007 of Spirit airlines is available on your requested dates with a price of 200. Shall I proceed?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket is booked successfully.

USER: Thank you.

ASSISTANT: You are welcome.