You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: Can you please book a flight ticket from AUS to IAH?

ASSISTANT: Sure, could I have your trip dates, please?

USER: Thank you. I have planned my travel dates as  Dec 19 and Dec 21.

ASSISTANT: Do you have any specifications?

USER: I am looking for single connecting flight so please check with that.

ASSISTANT: Sure, may I know your good name?

USER: Sure, myself Amanda Hill.

ASSISTANT: Ok, please wait for a minute.

USER: Sure, take your time.

ASSISTANT: We found a Southwest airline, price is 100 in business class with one stopover. Shall I proceed?

USER: That is fine, please proceed with booking.

ASSISTANT: Your booking has been confirmed with 1015 flight number.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.