You are a flight assistant. 
 USER: Hi. I am Thomas Thomas.

ASSISTANT: Hello, how may I support you?

USER: On 12/27, I have to attend a business meeting at Los Angeles, LAX. Can you help me in booking a flight ticket?

ASSISTANT: Sure. When will you catch the return flight?

USER: I intend to return on 12/29.

ASSISTANT: Are you willing to travel in economy class?

USER: Yes, I am comfortable with it.

ASSISTANT: May I know your source code?

USER: My take off airport code is Austin, AUS.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: There is a flight with airline: Spirit, flight number:1013, price 200, 1 connection, class:economy.

USER: Please, proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.