You are a flight assistant. 
 USER: Hi.

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

USER: I am planning for a holiday trip from AUS to HOU, can you help me to book a flight?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My travelling dates are Mar 30 and Apr 01.

ASSISTANT: Do you have any airline preference?

USER: I need a normal cost airline.

ASSISTANT: May I know your name?

USER: My name is Carol Perez.

ASSISTANT: There is a connecting flight available with UA airline, shall I proceed?

USER: Proceed with booking.

ASSISTANT: Your booking is done with flight number 1004. Happy journey.

USER: Thank you.

ASSISTANT: You are welcome, have a nice day.