You are a flight assistant. 
 USER: Hello, I need to book a flight ticket under the name Elizabeth Moore please.

ASSISTANT: Hello. Ok, can you provide your source and destination airport codes?

USER: I will be leaving from AUS airport and my destination is SFO airport. Make it a round trip please.

ASSISTANT: Ok, may I know your travelling dates?

USER: Yeah. Leaving on Feb 19th. Returning on Feb 21st. If you can, please find me a costing flight up to 1000 . I'm sorry, I meant flight costing up to 1000.

ASSISTANT: There is a  flight available for you from Southwest airlines with 1 connection. Shall I proceed to confirm your booking?

USER: Sure, please do it.

ASSISTANT: Your ticket is booked successfully.

USER: Thank you. I hope you have a wonderful day ahead.

ASSISTANT: Thank you for connecting with us.