You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: I am Richard Thomas, I have planned to go for lady bird lake bike tour at Austin.

ASSISTANT: Ok.

USER: Please book a flight ticket within price 1000.

ASSISTANT: Sure, may I know your travel dates please?

USER: My travelling dates are from 05/17 to 05/19.

ASSISTANT: May I know your airport codes please?

USER: I want to fly from NV- LAS to TX- AUS.

ASSISTANT: Thanks for giving your details, we found a flight on your details with airline Southwest, flight number: 1020. Shall I proceed for booking?

USER: Please go with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for the reservation.

ASSISTANT: Thanks for choosing us. Have a good day.