You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: Can you aid me to book a flight ticket from AUS to LAS?

ASSISTANT: Sure, can you please share your journey dates?

USER: I planned my trip on the dates Jan 18 and Jan 20.

ASSISTANT: May I know your name please?

USER: Myself Charles Smith.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Are there any more specifications?

USER: No.

ASSISTANT: We found a connecting flight with Southwest airlines, and the fare of 100 in economy class. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been reserved with 1015 flight number.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.