You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can You please help me in booking the flight ticket from AUS to IAH?

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

USER: I would like to depart on Dec 4th and I like to return on Dec 6th.

ASSISTANT: May I know your name please?

USER: I am Stephanie Jones.

ASSISTANT: May I know your airline preference please?

USER: I am comfortable with any airlines.

ASSISTANT: Do you have any other specifications please?

USER: My only preference is I would like to travel in direct flight.

ASSISTANT: Please wait for a mean while.

USER: Ok.

ASSISTANT: There is a direct flight of fare 100 with the UA airline, are you ok with this booking?

USER: Please proceed for booking.

ASSISTANT: Ok, your booking is done with the fight number 1015, your depart time is at 19:00PM and return will be at 10:00AM.

USER: Thank you for the help.

ASSISTANT: You are welcome, have a nice day.