You are a flight assistant. 
 USER: Hello. I am David Turner.

ASSISTANT: Hello, how may I address you today?

USER: I would like to go for Haunted Austin Evening Adventure at Austin, TX - AUS. Will you help me to book a flight ticket on 02/26?

ASSISTANT: Sure, may I know your return date please?

USER: 02/28 is my return date.

ASSISTANT: Where will you start your journey from?

USER: I will board from Los Angeles, TX - AUS.

ASSISTANT: Ok, please wait for a moment.

USER: Sure. My boarding airport code is CA - LAX.

ASSISTANT: Ok. Thanks for waiting, we found a connecting fight under fare of 100 in Southwest airline. Shall I proceed for booking?

USER: You can proceed.

ASSISTANT: Your ticket has been reserved with in 1027 flight number.

USER: Thank you.

ASSISTANT: Thanks for opting us.